> This kind of song would not fly in any other country on Earth. No other country has Freedom of Speech laws strong enough to defend against insulting the police.
I'm fairly certain you could do the exact same thing here in Canada. I honestly don't think it's as exceptional as you're making it out to be.
Canada has better defamation laws than most of Europe (as truth is an absolute defense), but the US puts the onus of proving falsehood on the plaintiff, not the defense, in cases concerning public figures. The US's freedom of speech laws are one of the few truly exceptional legal constructs we should be proud of. Most other good legal concepts the US has pioneered have been copied to similar or greater effect abroad, such as the ADA and worker's comp.