Where have I seen this scenario before.
oh yeah, Nazi Germany.
The test is coming. How much do you cherish your freedom? Enough to die for it?
How strong is your faith. They want to take that away.
Under the pretext of “helping” local communities short of police in difficult economic times, as well as preparations for a potential swine flu pandemic, U.S. troops are now occupying America as the country sinks into a state of de facto martial law. We have been inundated with reports over the last few weeks of uniformed soldiers and National Guardsmen running internal checkpoints all over the country as a frightening “Red Dawn” scenario unfolds not with a bang but with a whimper. The military are now being called upon to undertake roles normally designated to police as Americans are incrementally acclimated to accept the presence of troops on the streets as an everyday occurrence.
The Posse Comitatus Act is a United States federal law (18 U.S.C. § 1385) passed on June 18, 1878, after the end of Reconstruction, with the intention (in concert with the Insurrection Act of 1807) of substantially limiting the powers of the federal government to use the military for law enforcement. The Act prohibits most members of the federal uniformed services (today the Army, Air Force, and State National Guard forces when such are called into federal service) from exercising nominally state law enforcement, police, or peace officer powers that maintain "law and order" on non-federal property (states and their counties and municipal divisions) within the United States.
The problem in all cases is that it is easier to fly unmanned aerial vehicles (UAVs) in a war zone than in civilian airspace. One senior USAF officer was queried at a conference about the potential for operating UAVs in national--i.e., civilian--airspace. "Anyone here from the Federal Aviation Administration?" he asked. "No? Good." He then proceeded to air the military's frustration with the civilian authorities that own the airspace.

The Posse Comitatus Act is a United States federal law (18 U.S.C. § 1385) passed on June 18, 1878, after the end of Reconstruction, with the intention (in concert with the Insurrection Act of 1807) of substantially limiting the powers of the federal government to use the military for law enforcement. ... From Wiki.
I can't really think of anything else to add. I mean, when does it stop?
In late 2006, Congress revised the Posse Comitatus Act and the Insurrection Act to make it far easier for a president to declare martial law. Those changes were repealed at the end of this January as part of Public Law 110-181 (HR 4986), the National Defense Authorization Act for Fiscal Year 2008 (signed into law by President Bush on January 28, 2008).
Senator Patrick Leahy (D-Vt), who championed the opposition to the original law, was also the hero of the repeal. It helped that all the nation’s governors opposed the 2006 law. www.inteldaily.com...