In an interview with Foreign Policy, former United Nations ambassador John Bolton says that the only options for stopping Iran from obtaining nuclear weapons may now be "regime change or the use of force against the nuclear program."
"What then?" the magazine asks. "Assuming the United States pursues some kind of regime-change option in Iran, for example, how would the United States be able to sustain that, given the current situation in Iraq and elsewhere?"
Bolton's response: "Once upon a time, we knew how to do clandestine regime change. We need to reacquire that capability."