While I agree with you that most of the anti-GMO movement are just the usual granola smoking paranoid bunch (and since I'm a liberal, a vegan and an environmentalist I know that bunch quite well, some of them are even my friends), and that the technology holds promise to mankind, that doesn't mean that all criticism to Monsanto's is unscientific and pure fear mongering. Round up is toxic to ocean's photosynthetic life (http://link.springer.com/article/10.1007/s10646-009-0446-7#page-1 I offer a link of just one study, not because you cant' use google, but because the last time I said this here someone told me it was not backed up by facts, which is of course epistemologically impossible so I offer science) and their GM tech allows to spray it indiscriminately cause it won't kill the crop, and this is an issue in an already very troubled ocean environment.