Tobacco could help fight HIV???

(image from: http://dsc.discovery.com/news/2009/03/31/tobacco-hiv-drug.html)

Possibly. According to a Discovery News article, some scientists have modified some tobacco places to produce a large amount of a drug that helps prevent the HIV virus from colonizing the vaginal lining. The problem with the drug is that it's insanely expensive. However, growing the drug in the tobacco plants would make it way cheaper. It's a interesting idea. Hope it works. Though the article was very sparse on details.