OH: Biden To Set Free Would-Be 9/11 Hijacker. “Mohammed al-Qahtani, who planned to hijack planes on Sept. 11, 2001, for al Qaeda but was denied entry into the United States, will be transferred to Saudi Arabia following the Biden administration’s decision late last week to set him free. He is scheduled to be flown to Saudi Arabia and placed in a ‘custodial rehabilitation and mental health care program for extremists.'”