The money paid to get tobacco approved will pay the regulators to enforce the rules. Self sustaining enforcement. The big meat facilities have FDA inspectors on site.
Off topic, but noteworthy......I had an buddy who ran off-road tours on ATV's in the Desert Southwest and they would come across shards of pottery every now and then. He put several of the shards on rocks near the trails so the tourists could easily see them. Someone ratted him out and the Feds signed up to do the tours, undercover of course, they did the tours 7 times, just to make sure and gather photographic evidence. He was eventually fined $75,000 and had to take cultural sensitivity classes. Btw, the $75,000 fine, it was the cost of the investigation.
Another point. I've assisted in criminal defense cases in the past where I helped the defendant fight off charges that the ATF had arrested him on. I know from first hand experience how many resources the government brings in if they think they can make an example of you. Btw, the defendant sat in jail for 2 1/2 years before being found NOT GUILTY. Good luck suing the feds after something like that.
MSO, investigative reporting? That ship has sailed, a victim of short attention span theatre and the 24/7 news cycle. Besides, who's paying for the reporting, that's the true rub.
So in summary, if the feds get a bee in their bonnet they don't care the cost. They bring the weight of the government down on you.