Federal law's ability to enjoin local police activity is limited. And in any case: the law is a blunt instrument. It's (usually) better as a slowly changing r

Federal law's ability to enjoin local police activity is limited. And in any case: the law is a blunt instrument. It's (usually) better as a slowly changing representation of conventions and social consensus instead of something that we make sweeping changes in (whether legislatively or judicially).