LA HABRA -- Antiwar protesters burned and ripped up flags, flowers and patriotic signs at a Sept. 11 memorial that residents erected on a fence along Whittier Boulevard days after the terrorist attacks in 2001 and have maintained ever since. However, although officers witnessed the vandalism Saturday afternoon, police did not arrest three people seen damaging the display because they were "exercising the same freedom of speech that the people who put up the flags were,' La Habra Police Capt. John Rees said Monday. "For this to be vandalism, there had to be an ill-will intent,' he said.