Armored security vehicles roll into town…

Does anyone else think this is odd?  I wonder if they did this during World War II? The text of the Posse Comitatus Act, which is still in effect (as 18 U.S.C. Section 1385), reads:

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.