When Genes Escape

Does it matter to crops and weeds?

This may not sound like boffo material, but genetic–engineering-policy specialist Michael Rodemeyer knows his crowd. “As I was coming out here, I thought about making bumper stickers that say, ‘Gene flow happens.'” The line gets a good laugh; after all, Rodemeyer, a director of the Pew Initiative on Food and Biotechnology in Washington, D.C.,