[TeMPOraL]

Those, I agree, are legitimate concerns worth discussing. But 'bpodgursky is right that it's harder to discuss those when people are mostly vocal about some invented fear-inducing non-issues. This also holds for discussions about nuclear power.

About your concerns - it's worth noting that they're political/economical in nature and have nothing to do with genetic modifications itself. I agree with most of them, but personally believe that it's not enough to shut down the entire branch of science, as some of the opponents seem to want. But those issues definitely need to be addressed.