President Joe Biden has refused to approve certain conditions sought by defense lawyers in a possible plea bargain for the five defendants accused of planning and aiding the 9/11 attacks, complicating negotiations and raising questions about the success of the agreement. The terms under discussion would have spared the defendants from solitary confinement and provided care for the trauma of their torture in CIA custody. The plea agreement would allow the defendants to plead guilty to the charges against them in exchange for a reduced sentence.