FILE - In this June 2, 2012 file photo, Egypt's ex-President Hosni Mubarak lies on a gurney inside a barred cage in the police academy courthouse in Cairo, during a hearing in which he was sentenced to life in prison for his role in the killing of protesters during the revolution in the spring of 2011. An Egyptian security official says Mubarak has been slipping in and out of consciousness, more than a week after he was transferred to a hospital inside a Cairo prison to serve his life sentence. The official says Mubarak's wife, former first lady Suzanne Mubarak, and her two daughters-in-law were visiting him in prison Sunday, June 10, 2012, after rumors circulated that he had died. (AP Photo, File)

FILE - In this June 2, 2012 file photo, Egypt's ex-President Hosni Mubarak lies on a gurney inside a barred cage in the police academy courthouse in Cairo, during a hearing in which he was sentenced to life in prison for his role in the killing of protesters during the revolution in the spring of 2011. An Egyptian security official says Mubarak has been slipping in and out of consciousness, more than a week after he was transferred to a hospital inside a Cairo prison to serve his life sentence. The official says Mubarak's wife, former first lady Suzanne Mubarak, and her two daughters-in-law were visiting him in prison Sunday, June 10, 2012, after rumors circulated that he had died. (AP Photo, File)

FILE - In this Sunday, Jan. 29, 2012, file photo, former Egyptian President Hosni Mubarak is wheeled into court in Cairo, Egypt. An Egyptian security official says former president Hosni Mubarak has been slipping in and out of consciousness, more than a week after he was transferred to a hospital inside a Cairo prison to serve his life sentence. The official says Mubarak's wife, former first lady Suzanne Mubarak, and her two daughters-in-law were visiting him in prison Sunday morning June 10, 2012 after rumors circulated that he had died. (AP Photo/Mohammed al-Law, File)

In this June 10, 2012 photo provided by the U.S. Navy, former President George H.W. Bush is greeted as he arrives aboard the aircraft carrier USS George H.W. Bush (CVN 77). Bush, his wife, Barbara, their son, former President George W. Bush, and other family members toured the carrier just off the coast of Maine, where the family has a home. George H.W. Bush is the newest aircraft carrier in the fleet. (AP Photo/U.S. Navy, Petty Officer 3rd Class Carrel Regis)

In this June 10, 2012 photo provided by the U.S. Navy, former Presidents George W. Bush, left, and his father, George H.W. Bush, deliver remarks to the crew during a ceremony aboard the aircraft carrier USS George H.W. Bush (CVN 77). The Navy's newest aircraft carrier hosted the ship's namesake, along with his family and friends, for a promotion and reenlistment ceremony in the ship's hangar bay off the coast of Maine during a scheduled underway-training evolution. (AP Photo/U.S. Navy, Petty Officer 3rd Class Joshua D. Sheppard)