Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. May 05, 2012 Sept. 11 Attack Mastermind, Co-Plotters to be Arraigned Alleged Sept. 11 mastermind, Khalid Sheikh Mohammed, shortly after his CIA capture during a raid in Pakistan, March 1, 2003. Photo: AP Alleged Sept. 11 mastermind, Khalid Sheikh Mohammed, shortly after his CIA capture during a raid in Pakistan, March 1, 2003. Five men charged with planning and helping to carry out the terrorist attacks in the United States on September 11, 2001 are due to be arraigned Saturday at the U.S. military base in Cuba. Khalid Sheikh Mohammed, the self-proclaimed mastermind of the attacks, and his four co-defendants have been held for years at a U.S. military prison in Guantanamo Bay, while a legal and political battle played out over how and where to prosecute the men. All five face charges for killing nearly 3,000 people in the attacks in New York, Washington and Shanksville, Pennsylvania. The arraignment is the first step before the beginning of the trial. The legal maneuverings are expected to last for years. Several family members of the victims of the terrorist attacks were selected by lottery to travel to Cuba to watch the proceedings Saturday. Some information for this report was provided by AP and AFP. .