JohnOfSheffield
Lifer
There are accusations of racism in its application, and there are arguments that it makes for safer streets.
I lean towards safer streets.
It is rough if you're an innocent person who repeated gets caught up in these things, but it is possible to train cops to do these things courteously.
Without probable cause it would land the policeman/woman without a job in a heartbeat where i'm from.
Of course, we're not as "free" as you are.