The bodies of the seven CIA officers killed in Afghanistan last week have returned to the U.S. and were honored upon their return with a private ceremony at Dover Air Force Base in Delaware.

Meanwhile, more information has been released about the suicide bomber who killed them.

Humam al-Balawi was a 36-year-old Jordanian doctor. He was recruited by Jordanian intelligence to support U.S. efforts against al Qaeda and CIA agents thought he was going to lead them to terrorists.

"You're talking about an institutional nightmare," said Tim Weiner, author of The History of the CIA. "Because this was a recruited agent who was invited on to this base somebody they trusted. That proved fatal."

Click play to watch the report by CBN News Reporter Paul Strand.

Former Navy Seal Jeremy Wise and former police officer Harold Brown were among the CIA employees killed in the bombing.

Wise's family has created a Facebook page to honor him.