A federal appeals court will hear arguments today over whether the alleged mastermind of the 9/11 attacks and two accomplices should get plea deals. Family members of 9/11 victims weigh in.

A three-judge D.C. Circuit panel expressed deep skepticism over why the defense secretary waited to “pull the rug out” of years-long plea talks over death penalty.

Judges heard nearly four hours of arguments over whether former Defense Secretary Lloyd Austin had the authority to unwind plea deals reached with three men accused of planning the Sept. 11, 2001, terror attacks.

The man accused of being the mastermind of the Sept. 11 attacks, Khalid Sheikh Mohammed, has agreed to let government prosecutors use portions of a 2007 confession that he says were obtained through his torture at any future sentencing