Could the government of Iran be knocking off its own nuclear traitors?

Michael Ledeen has at least as good a theory as anyone else as to who is killing people related to the Iranian nuclear threat and why. Where does that leave us? Let’s go back to basics: who could operate in the midst of the armed camp that is Tehran, and might also have a motive for killing these five unfortunate souls? There’s a lot of killing in Iran, and the overwhelming majority of murders