Eventually, the mad cow outbreak was traced to cows eating feed that had been made with the brainy leftovers of other livestock, including sheep and cows—a practice now banned worldwide.

B R A T T L E B O R O, Vt., Aug. 1, 2000 -- A federal judge ruled today that twoflocks of sheep the federal government says might suffer from a type of the always-fatal mad cow disease should be ...