"In essence, this policy change seeks to supersede Posse Comitatus, the 1878 law which forbids the military from being involved in domestic law enforcement “except in cases and under circumstances expressly authorized by the Constitution or Act of Congress.” Under the Insurrection Act of 1807, the President may deploy armed forces domestically under extreme circumstances but Congress has to review the action every 14 days.
Under the War Powers Resolution of 1973, the President cannot commit troops to an armed conflict for a period longer than 60 days without an authorization from Congress of the use of military force or a declaration of war.
Under no circumstances in current US law is it legal for the military to deploy itself domestically without authorization from either the President, Congress or both."
It looks as if the U.S. military are actively expecting some sort of trouble in which authorization for the military's use by the command-in-chief isn't possible. I wonder why they are anticipating that? Especially when the organization most capable of arranging a situation where that authorization isn't possible is the U.S. military.
The Ciceronian historical cycle anticipates the development of an aristocracy at this point. It's interesting to consider from what that aristocracy might develop, as the areas of corporate and military power appear to be the two aspects of society that are increasingly immune to government regulation. If the Ciceronian model is still relevant, the aristocracy would likely develop out of that corporate-military intersection.