Sgt. Bowe Bergdahl’s new lawyer has a history of taking on thorny legal issues involving the military, including the future of Guantanamo and the role of prosecuting sexual assault. Eugene R. Fidell was also outspoken against the military over its secrecy in pretrial hearings for convicted WikiLeaker Chelsea Manning, NBC News reported. Fidell, who teaches military justice at Yale Law School, now represents Bergdahl, the former Taliban captive who is being investigated by the Army for desertion in 2009. “He’s very grateful to President Obama for having saved his life,” Fidell said of his client, who he is representing pro bono. Bergdahl has been “entirely cooperative with the government” since his exchange for five Guantanamo detainees, Fidell said.