Exactly which laws were broken here?
Anyway, more sour grapes.
Personally I think this is going to yet another incredibly close Pats (win) Superbowl.
First, how do you know unless you investigate?
Second, a law need not be "broken" for Congress to have the right to investigate a subject. Since the NFL is "interstate commerce," it is subject to Congressional power. And Congress is well within its rights to investigate something the size of the NFL. Whether it is a good idea or not is up to the constituents of the Congresspeople involved.
Finally, I hope the Pats win and complete the perfect season. I'd much rather listen to them than to the Dolphins. Go away already!