That's right, ooh scary - GMO's are a bit scary. No human safety tests were done - ever. Were all just supposed to trust the warm an fuzzy Monsanto would never sell us anything bad. It's just the company who made agent orange.
Now that studies are being done, GMO's are shown to cause increased allergenicity, as well as other problems:
"Animal studies consistently indicate serious health risks associated with GM food, including infertility, immune system dysfunction, organ damage, and increased mortality. Smith warns, "The only published human GMO feeding study confirmed that genes from the genetically engineered foods transfer into intestinal bacteria of humans and that these genes continue to function."