And for further edification, there’s “A Secret Deal on Drones, Sealed in Blood” about the “origins of the C.I.A.’s drone war in Pakistan” by Mark Mazzetti and “Targeted Killing Comes to Define War on Terror,” about the policy of the “drone campaign” by Scott Shane. They’re part of a continuing NY Times series. Mazzetti’s latest tells “how a single spy helped turn Pakistan against the United States.”