Relatives of the Sept. 11 victims will gather at military bases this weekend to watch the arraignment of the self-proclaimed mastermind of the terrorist attacks.

Khalid Sheikh Mohammed will be arraigned Saturday along with four co-defendants at Guantanamo Bay, Cuba, where they will eventually be tried in front of a military tribunal. A trial date will be set on Saturday.

For some families, the arraignment is a long-awaited moment in a case fraught with years of frustrating delays. Others will not be watching because they simply want to move on with their lives.

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