This week, the Department of Justice announced new guidelines against racial profiling. The changes don't actually change all that much. As regular incidents of police brutality get more and more mainstream media attention, it's time for a bold move from the White House. There's a moral obligation to keep bad cops off the streets. A job with a police department is not a right and shouldn't be treated like one. Police unions that push for permissive rules that end up protecting bad cops pose a serious public safety threat. Nevertheless, dismantling them where they've taken root is a difficult prospect even in the long-term. There are other ways to keep bad cops off the streets. The federal government, writes Ed Krayewski, ought to create and encourage the use of a police offender registry list to close the revolving door for bad cops.