To me, that's the definition of hypocrisy. They pretend to be acting from a moral (or at least societal) high ground and roundly condemn the actions of anonymous. However, both are engaging in the exact same behavior. Now that's hypocritical!
Are you allowed to lock people in a cage for decades because they do something you disagree with? Of course not.
Is the FBI allowed to do this? Well, yes, but only because they're special and you have to do what they say, not what they do. Now what's this word hypocrite you speak of?