Suicide Squad Vol. 2 by Adam Glass

Suicide Squad Vol. 2: Basilisk Rising (The New 52) : Paperback : DC Comics : 9781401238445 : 1401238440 : 19 Feb 2013 : As the surviving Squad members attempt to recover from their disastrous Gotham City mission, we learn a dark secret that has been festering in the team since issue #1- a traitor stalks the Suicide Squad! The saboteur's mission- Assassinate Amanda Waller, expose the Squad and leave Task Force X in ruins! The Basilisk strikes!