grab,
I am not completely against gm crops; for instance theres good evidence that in places like drought ridden africa - major food crops such as yams can be modified to grow better and bigger than the normal yams.
the problem I have is taking BT which is a safe and naturally occuring insecticide and putting it into corn for instance. BT-corn
is currently approved for animal consumption but not human, as so far
tests have indicated that people who are sensitive will have allergic reactions to bt-corn. But BT corn has shown up in cornproducts across the US and as far as Japan, because either some farmer got it mixed up or said to hell with it, I can sell it as regular corn. and now its out there.

now that you have the insecticide in the corn, it will only cause the insects and pests to build up faster resistance, and an insecticide that can be used by organic farms and other farmers other now may only have less than a 100 years of use, all thanks to monsanto taking it and modifying it for their own corn.

(I also question a lot of other practices by monsanto- ie drugs to dairy cows to produce more milk, (every cow not given the drug is lost profits - according to their promo video) - when there's an oversupply of dairy farms and the market has to be regulated)

there's also the issue of retroviruses lurking in dna, that may be c
released with genetic manipulation: since its not a completely perfect science. Theres a lot of great advances thanks to science, but that doesnt mean we should blindly accept what scientists say after all we have them to thank for creating the bse problem (by feeding ground up sheep to cows etc)

at the very least gm foods should be labeled, so that we have the option to know what we are eating.