What Obama doesn't realize, as he has evidently never read the Constitution and the National Security Act, is that we in these United States already have a "domestic security force."
It's called "the militia."
"The militia of the United States shall consist of all able-bodied male citizens of the United States and all other able-bodied males who have or shall have declared their intention to become citizens of the United States, who shall be more than eighteen years of age, except as hereinafter provided, not more than forty-five years of age...."
Or as Tench Coxe more eloquently put it:
"Who are the militia? are they not ourselves.... Congress have no power to disarm the militia. Their swords, and every other terrible implement of the soldier, are the birth-right of an American....
The unlimited power of the sword is not in the hands of either the federal or state governments, but, where I trust in God it will ever remain, in the hands of the people."
And I hope we're all smart enough here to realize that Tench was using the word "sword" figuratively to mean weapons in general.