text: Convention Protests Target Labor Policies NEW YORK - Republican National Convention protesters waved symbolic pink slips along a three-mile "unemployment line," labor unions demanded better treatment of workers and a group of AIDS activists infiltrated Madison Square Garden on Wednesday, as arrest totals soared beyond 1,700 for the past week.    The arrests, including several on Wednesday, far surpass those made in much more violent circumstances at Chicago's 1968 Democratic convention...