When it comes to pet positions, the more fundamentalist leftwing bloggers in science love to note how anti-science Republicans are, despite Pres. Bush doubling the NIH budget and increasing the NASA budget 15% after a decline of 5% during the 8 years Pres. Clinton was in office.

They have to be anti-science because, you know, they are Republicans.   So if right wing people put the brakes on human embryonic stem cell research because, at the time the technology was really created in the late 1990s no one was sure about its implications, they are stupid and hate science.   If left wing people continue to regard genetically modified organisms as a concern, that's just the precautionary principle.  

(insert your favorite double standard exclamation here)

Basically, leftwing people need an excuse to hate rightwing people and science is a weapon in that arsenal but weapons fire both ways.   GMO has not resulted in a single instance of so much as a stomach-ache, Science 2.0 scribe Lee Silver notes, despite being around longer than the technology to produce human embryonic stem cell lines readily.

RealClearScience editor Alex Berezow does his best to drive a stake into the undead heart of GM opposition, though, like vaccines and autism, evidence-based thinking is missing here as well.

When you are done reading Berezow's debunking of GM concern and finish wondering why leftwing people hate science and poor people and don't want them to eat, you can watch Lee Silver go toe-to-toe with Stephen Colbert, who is a pro-science version of Jon Stewart, if you are not from the U.S.  If you are not from the U.S. and don't know who Jon Stewart is either, they are comedians their fans think are journalists.