From my reply in post #15: "Maybe kicking in doors is the wrong approach to all but crimes of imminent menace."
Going after pedophiles has a decided emotional appeal but I doubt that this approach will be much of a deterrent and is itself an abuse of the citizenry.
I see it being used as a means to erode gun rights. In a nation where people have and exercise the right to keep and bear arms in defense of their homes and families, kicking in doors is a potentially lethal proposition, regardless of who you are. The more the police come to rely on these tactics the higher the probablilty that innocent people could get killled over misunderstanding or paperwork error. The liberals can then argue that having guns in your home is inherently dangerous.