Jul 02, 2004 — Critics of genetically engineered foods question the safety of using genes from different species to alter the behavior of plants. But the supporters of bio-engineered crops say the plants are rigorously tested before they're allowed on the market. In the second of two interviews on the subject, the Great Lakes Radio Consortium's Lester Graham talks with Bruce Chassy. Chassy is with the University of Illinois' biotechnology center. Graham asked why the agriculture industry is pushing genetically engineered crops.