John Stossel's take on the subject.
http://www.humanevents.com/2013/08/2...-warrior-cops/
"We need police to catch murderers, thieves and con men, and so we give them special power — the power to use force on others. Sadly, today’s police use that power to invade people’s homes over accusations of trivial, nonviolent offenses — and often do it with tanks, battering rams and armor you’d expect on battlefields............"