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Pre-trial hearing for alleged 9/11 mastermind Khalid Sheikh Mohammed set to resume

03:19

The pre-trial for the alleged mastermind of the 9/11 attacks, Khalid Sheikh Mohammed, is set to resume less than a week before the 20th anniversary of the deadliest terror attack on American soil. NBC News’ Ken Dilanian reports from Guantanamo Bay to explain what Mohammed is accused of and what to expect from the pre-trial hearings.