Some leftist groups view the police as class traitors who suppress the freedom of speech of the working class. I'm not sure that people who would align themselves with a group like Palestine Action would agree that they are free to protest about Palestine "all [they] want," or would find fracturing a policewoman's spine to be disqualifying. In fact, some may find that kind of action to be preferable to the reflexive deference to the police that really became visible after 9/11.