How safe are Monsanto's genetically-modified (GMO) food crops? Not so much. A new study shows that both of Monsanto's major products (which the company claims are harmless to people) in fact can cause damage to human kidney cells. Bugkiller + weedkiller On the one hand, the study by Gilles-Eric Séralini at the University of Caen, France, found that despite Monsanto's protestations to the contrary, the Bt toxin can distrupt the cell membranes of human cells, leading to their death. The toxin is only supposed to do that in the guts of the bugs it targets. Bt has been used for...