At first, the witness, 32-year-old Fahad al-Thumairy, dressed in traditional white robes and headdress, answered the questions calmly, his hands folded in front of him. But when the interrogation became confrontational, he began to squirm, literally, pushing himself back and forth in the chair, folding and unfolding his arms, as he was pressed about his ties to two Saudi hijackers who had lived in
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