http://www.organicconsumers.org/monsanto/
Tons of info on this site, a google search will come up with even more.
GMOs first approved under Clinton in 1996 without any long term safety studies. Cancer and degenerative disease rate has skyrocketed since then.
GMOs contain foreign DNA implanted into the seed which shows up in the grown plant.
Many countries have banned GMOs, even China rejected a shipment of corn from the U. S. because it contained GMO DNA. China! Yes, the country of melamine poisoning rejects our food supply.
Obama has placed Monsanto hacks in charge of the USDA and FDA-more GMOs approved under him than any other President, this after promising to label GMOs when he first ran for President.