This article was produced in partnership with the Pulitzer Center on Crisis Reporting.
GUANTÁNAMO BAY, Cuba — Military prosecutors say they have tapes of telephone calls between the alleged mastermind of the Sept. 11 attacks, Khalid Shaikh Mohammed, and three of his accused co-conspirators talking in code about the plot months before it took place, a defense lawyer disclosed on Monday.
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The lawyer, Jay Connell, revealed the existence of the tapes as part of a protest over plans to use them as evidence at the death penalty trial of the alleged conspirators. More than 17 and a half years after the attacks — in which 19 hijackers commandeered four commercial airplanes and crashed them into the World Trade Center, the Pentagon and a Pennsylvania field, killing nearly 3,000 people — there is still no date set for the trial in the proceedings at Guantánamo Bay.