“As Ismay finished his service commitment with the Navy in 2010, he read a New York Times piece detailing the complex origins of weapons found inside a Taliban gun locker. He then began corresponding with C. J. Chivers, the paper’s longtime conflict and arms reporter who wrote the piece. Ismay calls him Chris, but for seven years ending in 1994, he was Captain Chivers, a Marine infantry officer who served in the Gulf War.”