Pakistan's army spokesman says a senior officer serving at army headquarters has been detained for suspected links with a banned militant group. Maj. Gen. Athar Abbas said Tuesday that Brig. Ali Khan is being questioned by army authorities over the links. He said Khan was detained recently but did not provide an exact date or specify the banned militant group involved. The detention follows reports by U.S. officials that Pakistan detained five Pakistanis, including an army major, for helping...