Paid brownshirts.
You don’t suppose the FBI generates a 1099 for each of those cash payments under the informant’s legal name?????????
That alone might keep some of those armed and able 87000 IRS agents busy for a bit.
...not to mention the fact the article would have you believe that each FBI agent is expected to have multiple paid informants under his command essentially doing the agents job for him.
A whole lot more than investigation is needed where the FBI is concerned.