Drone strike on US soil possible, says Holder
An 'extraordinary circumstance' could require lethal force, attorney general tells senator

United States forces could launch a deadly drone strike against a target on US soil if there was an "extraordinary circumstance", Attorney General Eric Holder said in a letter to US Senator Rand Paul, a Republican.

Paul branded Holder's refusal to comprehensively rule out such a drone strike "more than frightening".
Three Americans are known to have been killed in US drone strikes, including al-Qaeda propagandist Anwar al-Awlaki. They were targeted in Yemen, not on US soil, but questions have been raised about the legitimacy of the tactic.
Paul had sought information on President Barack Obama's authority to order lethal drone strikes as part of the confirmation process for John Brennan, Obama's pick to head the CIA.
"The question you have posed is … entirely hypothetical, unlikely to occur and one we hope no president will ever have to confront," Holder wrote, in a letter dated Monday.