[Edward.Fish]

They can be used in support of legal authorizes like DEA, Coast Guard, Border Patrol etc. What they cannot do is directly assume police powers inside the USA.

Dead wrong -- See Post 52.

[MNJohnnie]

Whoever, except in cases and under circumstances expressly authorized by the Constitution or Act of Congress, willfully uses any part of the Army or the Air Force as a posse comitatus or otherwise to execute the laws shall be fined under this title or imprisoned not more than two years, or both. (Added Aug. 10, 1956, ch. 1041, § 18(a), 70A Stat. 626; amended Pub. L. 86–70, § 17(d), June 25, 1959, 73 Stat. 144; Pub. L. 103–322, title XXXIII, § 330016(1)(L), Sept. 13, 1994, 108 Stat. 2147.) Might want to actually read your own link.