Weeds become stronger and fitter by cross-breeding with genetically engineered crops, US researchers have shown for the first time. And at the same time, a team in France has demonstrated how easily weeds might be able to swap genes with the GM strains of sugar beet already in field trials.</p><p><a href="http://www.newscientist.com/news/news.jsp?id=ns99992671">New Scientist</a></p><p><a href="http://www.osu.edu/researchnews/archive/sungene.htm">Univ. Ohio press release: Genetically Modified Crops May Pass Helpful Traits To Weeds, Study Finds</a>