Farmers face tough choice on ways to fight new strains of weeds. A hot debate has erupted over whether farmers should adopt a new generation of genetically engineered, herbicide-resistant crops or turn away from chemical herbicides altogether. Morning Edition, NPR.
http://www.npr.org/blogs/thesalt/2012/03/07/147656157/farmers-face-tough-choice-on-ways-to-fight-new-strains-of-weeds