Description:KFC and McDonald's under siege in China. The latest report - sick chicken from a supplier allegedly used by the two fast food giants. The local government denies the report and KFC says it's monitoring the situation closely. So far McDonald's hasn't commented. It comes on the heels of another recent scandal, in which so-called "instant chicken" pumped full of antibiotics was found at a former supplier to KFC and McDonald's.(1:48)