We were united around US involvement in Viet Nam at that time and THAT was the glue
There's nothing to unite and hold together any mass coalition ... obumbles knows that in order to keep his power position, he's got to do SOMEthing desperate ... I think it will be a mass slaughter by armed Americans against islamist invassion and THAT will be his clarion call for Martial Law
THEN Americans will turn on the ones that come out against us
my opinion
I see a lot of blood being spilled soon too.