Based on the reports I have heard about this, it would appear that law enforcement was asking Google/YouTube to remove things without a court order, and did not fall under DMCA guidelines. Should that be the case, Google did the right thing.
If (whatever) was so illegal or wrong, law enforcement should have no issue using the tax payers money and getting a court order to have this removed. I believe this is referred to as 'due process'. Same as they can't get access to your email on a "request" they must have a court order. Additionally, to get the court order they must PROVE suspicion of whatever they are looking for.
This is how the law is supposed to work.
