NFL's new safety policy

I just figured out why the NFL office is cracking down on what they call violent hits. The US Congress had hearings with the NFL during the offseason grilling NFL representives about concussions. I guess retired players were complaining and did not feel they were taken care of corectly by the NFL and went to the goverment. Now we have a bigger problem. What buisness does the US goverment have with how football is played. I guarantee you they put pressure on League headquarters. Whats next? Boxing, MMA, Hockey, Nascar. We got a major problem now!