(NY Times) — The top American spy in Pakistan left the country on Thursday amid threats to his life after his name was revealed in a lawsuit over alleged American drone attacks, United States intelligence officials said Friday.

The C.I.A. station chief in Islamabad is perhaps the agencyÂ’s most important undercover assignment overseas because that person oversees its secret war in Pakistan using armed drones that target Al Qaeda and the Taliban. The suit that named the C.I.A. station chief, who was working undercover and whose name is classified, was filed over attacks that killed at least two Pakistanis.