"President does not have authority to use a drone to kill an American on U.S. soil if the citizen is not engaged in combat." Why in the heck is there an armed drone flying over the U.S. in the first place (minus military training etc...) What does he mean, "if the citizen is not engaged in combat"? If anything, the administrations answers has done more to muddy the waters than before. The answer should be its Unconstitutional. FISA courts will be consulted for actions overseas and congress (Intelligence and armed services committees) will have full access to the process.