Several months ago, the Washington Post reported  that presidential counterterrorism adviser John Brennan was developing a “playbook” of rules for drone attacks:
“The “playbook,” as Brennan calls it, will lay out the administration’s evolving procedures for the targeted killings that have come to define its fight against al-Qaeda and its affiliates. It will cover the selection and approval of targets from the “disposition matrix,” the designation of who should pull the trigger when a killing is warranted, and the legal authorities the administration thinks sanction its actions in Pakistan, Yemen, Somalia and beyond.”
On Sunday, the Post followed  with a report that the playbook was nearing completion, and would provide clear rules.
“In Yemen, officials said, strikes have been permitted only in cases in which intelligence indicates a specific threat to Americans. That could include “individuals who are personally involved in trying to kill Americans,” a senior administration official said, or “intelligence that . . . [for example] a truck has been configured in order to go after our embassy in Sanaa.
“The playbook has adopted that tighter standard and imposes other more stringent rules. Among them are requirements for White House approval of drone strikes and the involvement of multiple agencies — including the State Department — in nominating new names for kill lists.”
But there is one exception to the new rules. The CIA drone program in Pakistan gets an exemption for at least a year. That exemption is described as “a compromise that allowed officials to move forward with other parts of the playbook.” The disputed point that apparently led to it was the CIA’s use of so-called “signature strikes,” attacks based on behavior seen as suspicious rather than in specific identified targets.
It also appears that the coming withdrawal of U.S. troops from Afghanistan will lead to more and more drone attacks. The Post quotes a former official involved in the playbook, “There’s a sense that you put the pedal to the metal now…”