Yes, the president does have the authority to use military force against American citizens on US soil—but only in "an extraordinary circumstance," Attorney General Eric Holder said in a letter to Senator Rand Paul (R-Ky.)
And here I thought we were a nation of laws, a nation of due process. But putting that aside, my question is this Mr. Attorney General. If the Pres. is authorized to kill US citizens on US soil, what is to prevent a sitting Pres to kill suspected terrorists in Guantanamo Bay? Aren't they imprisoned because of "extreme circumstances"? Isn't terrorism by definition extreme?