Ok I read the transcripts and Rand's question was different. Cruz's question was:
Cruz: The person is suspected to be a terrorist. You have abundant evidence he’s a terrorist. He’s involved in terrorist plots, but at the moment –
Holder: OK, I see.
Cruz: — he’s not pointing a bazooka at the Pentagon. He is sitting in a cafe. Overseas the United States government uses drones to take out individuals when they are walking down a pathway, when they’re sitting at a cafe. If a U.S. citizen on U.S. soil is not posing an immediate threat to life or bodily harm, does the Constitution allow a drone to kill that citizen?
Holders answers were:
1)Holder: A person who is not engaged, as you describe — and this is the problem with hypotheticals. The way in which you have described this person sitting at the cafe not doing anything imminently, the use of lethal force would not be appropriate, would not be something –
2) "No"
So he said "not appropriate" to a single hypothetical situation, leading an intelligent person to ask, what would be the appropriate scenario that the US Government can kill a US citizen on US soil. What if there person were taking a tour of the White house, not sitting in a cafe`, and they were suspected of terrorism? Would its then be appropriate?
Rands question if I remember correctly was something like, "Does the US government have the right to kill US citizens without trail under the NDAA." Currently the answer seems to be "Yes." Just the President has to deem that person a threat, and without trial who will ever know if the Presidents decision was correct.
That is the problem with dictatorship like powers.