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September 09, 2011

Seeds of Distrust

Seeds of Distrust: The Story of a GE Cover-up explores the potential release of genetically modified (GM) corn in New Zealand in 2000 and alleged attempts by the government to cover it up. As New Zealand has very strict controls on the presence of GE organisms, the publishing of this book made genetic engineering (GE) a hot topic in the 2002 elections. Although Nicky Hager describes some dubious practices from the Labour government, the story in Seeds of Distrust is let down by a lack of science and ultimately loses sense of all proportion.

In late 2000 the Ministry for Agriculture and Forestry (MAF) and the Environmental Risk Management Authority (ERMA) were notified by seed company Novartis of the possible presence of a transgene in a sweet corn seed shipment. Initially Helen Clark took the position that the planted crops needed to all be pulled out and destroyed. Legislation was quickly rushed through in order to give the relevant government agencies the necessary authority. However, after meeting with representatives from the industry, the government became less convinced of any significant transgene presence and moved to adopt new rules allowing seed shipments containing up to 0.5% trangenes to be labelled GE free. The rational for this is PCR - the technique used to detect transegenes - has a certain lower limit of detection (for practical reasons). Additionally, some doubt was cast on the accuracy of the positive results which could have been due to sample contamination or a PCR artifact. Given the positive tests were less than the newly adopted 0.5% threshold, the government allowed the sweet corn to mature and enter the food chain. The Labour government kept the whole situation relatively low key in order to avoid spooking the public as a royal inquiry into GE was currently underway. This is the basic story that emerged for me after reading the facts presented in Seeds of Distrust - and it is a well documented book - however Hager has a different take.

Hager makes a big deal of the government meeting with industry to talk about the possible release of a GMO. Although I share his unease with the influence of corporations on government, in this case it was Novartis who initial detected possible transgene presence and it was their corn seed shipment which may have been recalled or destroyed, they needed to be involved in the early stages. Hager also focuses on the threshold level being set at 0.5%, he says the practical limits of PCR detection were actually 0.1%. Although, in principle, this meant the government was allowing up to fives times more GMOs into the country than was necessary, the overall level of transgene presence in the shipment of seeds was 0.04 - 0.08% and therefore below either measure. There was one test which reported a 0.5% transgene level but here his lack of science really lets Hager down as the rigour of the test is not defended at all. The story then continues with Hager doing everything he can to spin the downplay of the possible GMO release by the government into a deliberate cover-up of a definite GE food contamination. This is the weakest part of the book and I was not convinced anything particularly sinister was being perpetrated by the New Zealand government.

After reading this book I wanted to find out more about the science of the PCR tests that had gone on during this process. I found this press release by Dr Russell Poulter (now a professor of genetics at Otago University) who explains where the positive results came from. The ‘transgene’ detected was actually the nos terminator which can be associated with the actual transgene but can also be found in the common soil bacteria Agrobacterium. If this was an actual case of transgene presence then a 35S promoter sequence should have also been found by PCR as it is associated with the transgene but is not present in soil bacteria. It wasn’t. Given that Hager notes two of the samples were opened in the field, it seems likely these positive results were from contamination of the sample rather than due to a GMO. Removing these as false positives brings the presence of transgene down to an undetectable amount and eliminates most of the force in Seeds of Distrust.

Overall, Hager has written a book detailing behind-the-scenes decision making when governments behave in a less than exemplary manner. But given that the major premise of his book - GMOs were knowingly released by the government - is not well defended and likely false the whole thing reads like a storm in a teacup. Only worth reading if you are interested in the GMO scandal that hit around the 2002 election.

2/10.

September 06, 2011

The Nazis were wrong!

Over at Well that was Daft Nasher lays out his position on objective and subjective truths. I have a different take on this subject to him and one critique of his post that may make him rethink things a little.

First, let’s get clear on the distinction between objective and subjective. Following John Searle I’ll distinguish between two types of questions: metaphysical and epistemological. Metaphysical questions concern “what exists?” Something exists objectively if its existence doesn’t depend on it being experienced. For example, the Earth exists whether or not there is someone here to experience it. On the other hand, subjective existence depends on being experienced. The feeling of a stubbed toe or the aroma of a nice Sauvignon Blanc are metaphysically subjective and their existence depends on me experiencing them. The experience is unique to me, you could never find out the way stubbing my toe felt to me.

However, Nasher is more concerned with epistemological questions. These are questions regarding “what is true?” Epistemologically objective statements can be true or false but the methods used to determine their truth value have to be publicly available and generally agreed upon. By ‘publicly available’ I mean not reliant on personal subjective experience and ‘generally agreed upon’ means that reasonable people, when presented with the same evidence, would come to the same conclusion. To take Nasher’s example:
“Some things are absolutely, objectively true. That the Earth is round is an example of this kind of truth.”
This is indeed an objective statement. We can take a publicly available observation – departing ships sink below the horizon – and draw the reasonable conclusion that the Earth is round. Epistemologically subjective statements are those whose truth value is determined by metaphysically subjective evidence. If I was to say “apricots taste better than strawberries” the primary evidence in determining the truth of that statement would be how different fruits taste to me. Someone else who has different subjective experiences of taste could reasonably disagree with my statement.
Nasher proposes a novel test do determine whether a truth statement is objective or subjective:
“Did the Nazis themselves think they were justified [in the systematic extermination of six million Jews]? If the answer is "yes", if even a single Nazi considered the holocaust justified, then the answer to this moral question is subjective. In fact, all it takes is the capacity for someone to consider it justified and it becomes subjective.”
But is this test sufficient? What if we change the topic and consider a flat-Earther? Surely there is a single flat-Earther who considers their position on the shape of the Earth to be justified, or - if not - we can at least agree there is the capacity for someone to consider the flat Earth position justified. According to Nasher’s test this makes the issue of the planet’s shape subjective, but earlier we agreed that this was an objective question. I would submit to Nasher that his central test for subjectivity leads to outcomes that he would reject.

We could modify the subjectivity test slightly to avoid my objection. If we said that no reasonable person could find flat-Earth justified then we have a second criteria that would eliminate the problem. But now we have to apply the new criteria to the moral question, could a reasonable person find the Nazi holocaust justifiable? Nasher seems to think not:
“Obviously, your answer is "no". I share your sentiments. I consider the Holocaust to be one of the worst crimes committed in human history. If you do not feel the same way, I invite you to jump off a skyscraper and rid the rest of the world of your barbaric views.”
I agree. Someone who thinks the holocaust was justified, even if they are Nazi, is either lacking certain information or is just not thinking in a reasonable way - a "barbarian".

Since morality is based on certain objective facts about the world and a need for clear and rational thinking, it seems morality is much closer to the realm of epistemological objectivism than subjectivism. Hence why am a moral objectivist and can confidently say that the Nazis were wrong!

September 03, 2011

A plea to theists: well I guess it is too late for you

One of the greatest ironies in life is watching theists try to reason about moral philosophy. The mess of contradictions produced makes for some laugh-out-loud reading and can be terrific fun to unpack. Working through this kind of fractal wrongness can also help us to clarify our own moral reasoning and shows us why secular morality is superior to that of the religious.Exhibit A is Rabbi Moshe Averick’s A Plea to Atheists: Pedophilia Is Next On the Slippery Slope; Let Us Turn Back Before It Is Too Late. I’ve picked out a few of the major problems and given my response to them.

Subjectivity
Averick’s main beef with atheistic morality is that is subjective:
“For the atheist, morality is simply a word that is used to describe the type of system that an individual or society subjectively prefers. Each society establishes, maintains, and modifies its values to suit its own needs.”
While some atheists do see morality as subjective there are also moral philosophies based on facts and a shared understanding of reality (i.e., objective). Rabbi Averick also thinks it is a problem that moral philosophy can update itself as new arguments are made and accepted. As someone who works in the sciences I am comfortable with knowledge improving as new facts are discovered and new ideas developed. There will be setbacks, aberrant paths that are found to be wrong, but on the long view a gradual improvement is continuously made. In modern social democracies can we really doubt that we are better off today than in the past? We have more freedoms and more rights than ever before. This is not the result of mere subjective whims that happened to go the right way, but a recognition that some actions of the past (e.g., slavery) were wrong and should no longer be permitted in our society. Dogmas, on the other hand, do not update and are stuck in our less enlightened past.

Peter Singer
Averick spends a significant chunk of the article attacking Peter Singer for his views on consequentialist utilitarianism. Which is an objective moral system. The Rabbi doesn’t seem to recognise that his criticism of moral subjectivism doesn’t apply to Singer but he continues regardless:
“Singer went on to explain that he is a “consequentialist.” For the benefit of the philosophically challenged let me explain “consequentialism” in a nutshell: If you like the consequences it’s ethical, if you don’t like the consequences it’s unethical. Thus, if you enjoy child pornography and having sex with children it’s ethical, if you dislike child pornography and having sex with children it’s unethical.
What Singer’s philosophy actually entails is the evaluation of harm that results from an action. Utilitarianism considers happiness to be desirable and harm to be deleterious. This means that when assessing an action for its morality you should look at the consequences in terms of the people harmed and the people helped. So if enjoying child pornography and having sex with children harms someone then it is unethical. Since paedophilia often has traumatic effects on the child involved, their parents, and the wider community Singer would most likely find most cases of paedophilia morally wrong. So much for the slippery slope argument.

S.P.A.G.
Averick claims that since we resulted from slime (or from dust if you are Jewish, I guess that’s better?) that means we are morally bereft. The fact that we evolved from primates does not degrade humanity. It is thrilling to think that all species on this planet are interrelated though the process of evolution. What makes humans different, more significant than our jungle dwelling relatives, is our ability to reason. When we exercise our unique intelligence we get to make our own decisions about meaning, value, and morality. Atheists aren’t handed their morality from on high, we have to think about it, and thanks to evolution we have that ability. After spending most of the article decrying the ability of secular philosophers to reason about ethics, Averick engages in the most dishonest part of the article. He simply throws out a bunch of ethical rules without giving any justification for his claims.
  • All men are created in the image of God and are therefore inherently and intrinsically precious.
  • All men have been endowed by God with unalienable rights and among these are the right to life, liberty, and the pursuit of happiness.
  • Thou shalt not murder.
  • Thou shalt not steal.
  • Thou shalt not bear false witness.
  • Thou shalt not commit adultery, incest, or bestiality.
  • Thou shalt not have sex with children, and if you do you will be looked upon as a disgusting and contemptible criminal and will be treated as such.
  • Thou shall teach these laws to your children.
Fortunately, we can recognise the source for some of these claims, and they don't come from a god. The ones about unalienable rights are from the American Declaration of Independence and the rules about murder, stealing, perjury, and adultery are from the Torah. These moral rules aren’t from God but from the men who wrote the documents. But where do the other bits and pieces come from? Since Averick hasn't demonstrated God is the moral author, we have to conclude they come from Averick himself. The Rabbi simply prefers it to be the case that paedophilia is immoral and so claims that it is a divine command. This is merely Self-Projection As God. After spending an entire article railing against subjective morality we find that the only justification Averick has is that he just feels paedophilia is wrong (and God agrees with me!) Unfortunately for Averick the main point of his article is that atheism leads to paedophilia. It is rather easily countered by the mention to two religions: Catholicism and Islam. Both of these theistic beliefs have managed to rationalise and accept (respectively) the sexual molestation of children. If theistic societies are also capable of accepting paedophilia then Averick’s point is moot and it seems that God does not totally agree with our hapless Rabbi on the immorality of pedophilia.

Irony, it’s everywhere.

September 01, 2011

Free GE

A recent story in the Dominion Post (Commercial benefits lacking in GE trials) reveals the genetic engineering trials being carried out by Crown Research institutions have lead to very few commercial gains. Plant and Food and AgResearch have paid over half a million dollars in application fees to ERMA and only one of the trials has resulted in royalty generating IP. To those familiar with New Zealand's restrictive requirements for GE research, this outcome is hardly a surprise.

Despite decades of safe use around the world, GE and GMOs remain contentious issues in New Zealand. The regulatory environment alone makes it difficult to carry out even basic research, let alone the commercial research which scientists are now being criticised for not producing. Anti-GE spokeswoman Claire Bleakley decries that the benefit of GE research being completed in New Zealand is lost to the overseas companies. But if private companies are the only ones paying for the research to be carried out then it makes sense they are the ones who reap the economic benefit. Basic funding for GE research is simply not available in New Zealand, the funding bodies know there is little chance any innovation made will be allowed to be used.

If New Zealand wants its scientific organisations to produce applied science using GE technology then it must:
1) relax the regulatory environment so that research time and money is not being consumed navigating expensive legislation
2) fund GE projects so the IP is not captured by overseas companies
3) open the New Zealand market to GMOs so that the benefits of this technology can be accrued here

There is very little risk and huge benefits to allowing GE research to be conducted more freely. The longer New Zealand clings to the anti-GE label, the more we miss out on the exciting commercial opportunities. Rather than be GE-free, let's free GE!