A US prosecutor has asked the judge in the 9/11 military tribunal in Guantánamo Bay for more time to look into whether an FBI investigation will affect the stalled war crimes trial.

The assistant US attorney Fernando Campoamor Sanchez says he confirmed the FBI began a preliminary criminal investigation involving classified information, but argues he needs 30 days to respond to a defense request to abate proceedings against five Guantánamo prisoners charged with orchestrating the attack on 11 September 2001.

A military judge abruptly recessed the first 9/11 trial hearing of the year Monday after defense lawyers accused the FBI in open court of trying to turn a defense team security officer into a secret informant.

If true, the lawyers argued, attorney-client confidentiality may be compromised in the case that seeks to put on trial and execute five men accused of orchestrating the Sept. 11 attacks that killed 3,000 people in New York, Pennsylvania and at the Pentagon.

In The Unknown Known, Oscar-winning documentarian Errol Morris (The Fog of War) turns his infamous interrotron on former Secretary of Defense Donald Rumsfeld. He was one of the key architects of the U.S. response to the attacks of September 11th under President George W. Bush, which included wars in Iraq and Afghanistan.

The title of Morris’ documentary, out April 4, is taken from a controversial response Rumsfeld gave in February 2002 when, as Secretary of Defense, he was prodded about the lack of evidence concerning “reports” propagated by the Bush administration that Iraq was supplying weapons of mass destruction to terrorist groups:

Family members and victims of the Sept. 11, 2001, terrorist attacks joined three members of Congress on Wednesday in calling on the Obama administration to declassify portions of a congressional investigation that addresses allegations of possible Saudi government support of the hijackers.

The report, released by a joint panel of the House and Senate intelligence committees in December 2002, contains 28 redacted pages that family members and victims say would shed new light on the hijackings. At the time the report was released, the Bush administration classified the material, but numerous sources reported it dealt with the Saudis.