Is the fox guarding the (non-GMO) hen house? "Testing for GMO products is currently voluntary," according to an FDA spokeswoman. "Although the consultation process is voluntary, compliance with the law is mandatory; it is the manufacturer's responsibility to ensure that the food products it offers for sale are safe and otherwise comply with applicable requirements," the spokeswoman said in a statement to ABC News.[1]

What has the FDA really "rigorously thought" about if they aren't testing?

[1] http://abcnews.go.com/Health/eating-gmo-produce/story?id=300...