Medical marijuana does a lot more than just enable people to eat when they don't want to. Research now shows that marijuana's active ingredient, THC, or tetrahydrocannabinol, blocks a known cancer-related protein that's already the target of drugs such as ImClone System Inc.'s Erbitux and Amgen Inc.'s Vectibix. MO'FO www.newscientist.com strange.blosker.com www.healthday.com www.nydailynews.com fluxrostrum.blogspot.com