The Department of Agriculture today confirmed a case of mad cow disease found in a dairy cow in central California. In a press briefing today, John Clifford, the USDA's chief veterinary officer, said the cow's meat did not enter the food supply and the carcass will be destroyed. The animal was found at a rendering facility run by Baker Commodities in Hanford, Calif. The disease was discovered when the company selected the cow for random sampling, Baker Commodities executive vice president Dennis Luckey told The Associated Press. The Agriculture Department confirmed today that the cow is the fourth discovered in...