Someone correct me if I'm wrong here... (you will anyway! )
Buskster raised the idea of martial law. As I recall, the Federal Government does not have any statute that permits the a nationwide martial law declaration. That power is certainly not in the Constitution.
There are, supposedly, limited powers when declaring a "National Emergency" but as I recally those are not only constrained by time but by Congress (small hope, but hope nevertheless).
Buskster raised the idea of martial law. As I recall, the Federal Government does not have any statute that permits the a nationwide martial law declaration. That power is certainly not in the Constitution.
There are, supposedly, limited powers when declaring a "National Emergency" but as I recally those are not only constrained by time but by Congress (small hope, but hope nevertheless).