BAGHDAD (Reuters) - Since guerrillas used donkeys to outwit the high-tech defences of the U.S. military in Iraq, the life of the beast of burden has never been so miserable. Attackers used donkey carts to launch Katyusha rockets at the Oil Ministry and two fortified Baghdad hotels on Friday. Two other donkey carts were stopped -- one carrying more rockets, the other a donkey-bomb wired up with explosives. Every donkey in Baghdad is suddenly under suspicion as U.S. President George W. Bush wages a global war on terror. In a crackdown on an animal that already suffers multiple daily whippings,...