Still itching for a fight.No matter what you make of the politics of the hard-bitten types who run the International Longshore and Warehouse Union, you've got to hand it to them for keeping the drum beating. Since the radical left-wing syndicate was born out of the violent San Francisco Maritime Strike in 1934, it's shown plenty of backbone standing up for those with a compelling claim to being screwed by the system. Cops -- against whom the ILWU has nursed a blood-feud since police killed strik