I'd say the professor sums it up neatly

library of congress swat team practicing in the Virginia countryside

Instapundit:
WELL, ONLY ONE GROUP IS DEPLOYED AGAINST THE GOVERNMENT’S ENEMIES:

RealClearInvestigations: More Federal Bureacrats than U.S. Marines can Pack Heat.

A report issued last year by the watchdog group Open The Books, “The Militarization of The U.S. Executive Agencies,” found that more than 200,000 federal bureaucrats now have been granted the authority to carry guns and make arrests – more than the 186,000 Americans serving in the U.S. Marine Corps. “One hundred three executive agencies outside of the Department of Defense spent $2.7 billion on guns, ammunition, and military-style equipment between fiscal years 2006 and 2019 (inflation adjusted),” notes the report. “Nearly $1 billion ($944.9 million) was spent between fiscal years 2015 and 2019 alone.”

The watchdog reports that the Department of Health and Human Services has 1,300 guns including one shotgun, five submachine guns, and 189 automatic firearms. NASA has its own fully outfitted SWAT team, with all the attendant weaponry, including armored vehicles, submachine guns, and breeching shotguns. The Environmental Protection Agency has purchased drones, GPS trackers, radar equipment, and night vision goggles, in addition to stockpiling firearms.

A 2018 Government Accountability Office report noted that the IRS had 4,487 guns and 5,062,006 rounds of ammunition in inventory at the end of 2017  – before the enforcement funding boost this year. The IRS did not respond to requests for information, though the IRS' Criminal Investigation division does put out an annual report detailing basic information such as how many warrants the agency is executing in a given year.

Yet more than a hundred executive agencies have armed investigators, and there doesn’t appear to be any independent authority actively monitoring or tracking the use of force across the federal government.

I hadn’t realized that we have more than 100 executive agencies in totl, let alone that number who are armd and dangerous.