GMO Answers has received several questions asking why GMOs have been banned in 30 countries or 60 countries. This is simply not true. Although GMOs may be grown on a small percentage of the hectares in some European countries, they routinely import GMOs for food and feed use. A previous response to a similar question discusses this issue in detail.
We also commonly hear concern that there are no longer-term feeding studies. A review of several long-term feeding studies was published by Snell et al. in 2012 and can be found here. In addition, the Biofortified website contains a list of more than 1,000 studies on biotechnology, including long-term feeding studies. It can be accessed at: http://www.biofortified.com.
You are correct that the Food and Drug Administration does not conduct its own safety studies. However, FDA scientists do thoroughly review the research conducted by the developers of biotech products and information available in scientific journals. This is the standard process for all regulatory agencies world-wide. A description of this process was addressed in another response available here.