Yesterday, U.S. District Judge Shira Scheindlin ruled the New York Police Department's "stop and frisk" procedure unconstitutional, indicating it amounted to "racial profiling." Sounds like a solid win for the Fourth Amendment, right? Maybe not.As Mayor Bloomberg explained:As recently as 1990, New York City averaged more than six murders a day. Today, we’ve driven that down to less than one murder a day. If murder rates over the last 11 years had been the same as the previous 11 years, more than 7,300 people who today are alive would be dead.