What do you know about genetically modified foods? Time for a Geek Out! Richard starts with some history as usual - humans have been modifying food plants for 12000 years! With selective and cross-breeding, humankind has managed to create and modify domesticated plants and animals in remarkable, and sometimes shocking ways. So genetic modification has been going on a long time now - why is there so much concern today? Technology has brought much more precision and options to genetic modification, and that raises all sorts of questions on what sort of changes make sense, and what should be done. There's lots of hype around GMO - what are the facts?