And New York city has once again rejected a request by protest group United For Peace and Justice to hold a massive anti-war rally in Central Park before the opening of the Republican National Convention. The group submitted another permit request yesterday but the city rejected it within hours. Now protest organizer Leslie Cagan said the group may take their case to the federal courts. The group had agreed to hold its Aug. 29 rally on the West Side Highway but now the group says that site is not suitable.