|Since 1992 (and despite evidence to the contrary), the FDA's stance on GM foods and crops is that they do not 'differ from other foods in any meaningful or uniform way'. Thus, testing of their effects in the environment, on animals, and on you and your family is unnecessary.
Don't expect any changes. In 2009, President Obama appointed former Monsanto lawyer and VP Michael Taylor as a senior adviser at FDA.
Some years ago the UK government directed scientists to develop an assessment protocol for GM crops through rigorous, long-term safety testing. Three years into the project, rats eating potatoes engineered to produce a harmless insecticide began showing severe signs of ill-health. The government, which was in favor of GM crops, fired the scientists and canned the project.
Monsanto's aim is to make money. The FDA's aim is not to stand in its way.