As Binalshibh stood and gestured at the judge, a row of uniformed guards along the wall of the courtroom immediately stood, and then three of them led the defendant out of the courtroom.
The lead defendant, Khalid Sheikh Mohammed, also sought to address the court as he has in the past but the judge rebuffed him as well.
"Mr. Mohammed, I am not here to discuss a legal issue ... I'm simply giving you your rights to be absent," Pohl said.
The exchanges came at the start of a hearing that was supposed to focus largely on problems with a Pentagon computer system used by lawyers in the case. Defense lawyers say they have lost data and have doubts about the security of their email. They have asked the judge to put the proceedings on hold until the issue is resolved.
The morning session was abruptly halted because one of the defense lawyers, Cheryl Bormann, was sick with flu-like symptoms. After going to a base hospital for treatment, she was resting at her quarters and the judge recessed court until Wednesday. If she has not recovered by then, the judge may decide to cancel the rest of the week's proceedings.
This is the sixth session of pretrial hearings in the case since the five men charged in the attacks were arraigned in May 2012. No trial date has been set. Mohammed, Binalshibh and their three co-defendants face charges that include terrorism and nearly 3,000 counts of murder for their alleged roles planning and aiding the Sept. 11, 2001, terrorist attacks. They could get the death penalty if convicted.