Here is a great explanation on GMO and Bt pesticide. A must watch documentary by David Suzuki. 46 Minutes

A Silent Forest: The Growing Threat Genetically Engineered Trees

"I am narrating this film because I'm concerned about the unseemly haste with which my colleagues and my peer groups seem
to be ready to rush in and begin to apply ideas in this revolutionary area, to apply ideas that I think are far too early to expose people either in our drugs, in our food or, out in open fields."
Arty turns 11 this summer.