If anyone has the 2013 Baker's Creek Seed Catalog, there is a very interesting article on page 14 that is a must read for anyone interested in GMO.
According to the article, corn and cotton has been genetically engineered to produce a toxin that causes the stomachs of insects to burst when they eat the plant. The insects are developing a resistance to it, and now it is undetermined if it will even work. What does that do to people when it is ingested? Is that a study I am willing to trust when I feed my family? No way.
The article goes on to say that in 2011, an expert warned the USDA that scientists had discovered large amounts of a microscopic organism in Round-up crops. This was associated with plant disease and reproduction problems with livestock. Even though the USDA had this information, they totally ignored it, approved Round-up ready alfalfa and as the time of this catalog's publishing, still had not acknowledged the research.
The article covers several other topics as well and was reprinted from the Heirloom Gardener Magazine- summer 2012 issue.