December 2001, following the September 11 attacks on the U.S. After an American aerial bombardment of a Taliban-controlled building at Gardez, Azza was pinned under the debris of a guesthouse roof. Concerned for her modesty, she "refused to be excavated" because "men would see her face" and she died from her injuries the following day. Her son, Mohammad, was also killed outright in the same house. Her four-year-old daughter with Down syndrome, Aisha, had not been hurt by the bombing, but died from exposure in the cold night while Afghan rescuers tried to save Azza. In the first half of 2005, one of Al-Zawahiri's three surviving wives gave birth to a daughter, named Nawwar. In June 2012, one of al-Zawahiri's four wives, Umaima Hassan, released a statement on the internet congratulating the role played by Muslim women in the Arab Spring. She is also known to have written a leaflet explaining women's role in jihad. Medical career In 1981, Ayman al-Zawahiri traveled to Peshawar, Pakistan, where he worked in a Red Crescent hospital treating wounded refugees. There, he became friends with Ahmed Khadr, and the two shared a number of conversations about the need for Islamic government and the needs of the Afghan people. Ayman al-Zawahiri worked as a surgeon. In 1985, al-Zawahiri went to Saudi Arabia on Hajj and stayed to practice medicine in Jeddah for a year. As a reportedly qualified surgeon, when his organization merged with bin Laden's al-Qaeda, he became bin Laden's personal advisor and physician. He had first met bin Laden in Jeddah in 1986. According to other sources, they met the first time in 1986 at a hospital in Peshawar. In 1993, al-Zawahiri traveled to the United States, where he addressed several mosques in California under his Abdul Mu'iz pseudonym, relying on his credentials from the Kuwaiti Red Crescent to raise money for Afghan children who had been injured by Soviet land mines—he raised only $2000. Militant activity Assassination plots Egypt In 1981, Al-Zawahiri was one of hundreds arrested following the assassination of President Anwar Sadat. Initially, the plan was derailed when authorities were alerted to Al-Jihad's plan by the arrest of an operative carrying crucial information, in February 1981. President Sadat ordered the roundup of more than 1,500 people, including many Al-Jihad members, but missed a cell in the military led by Lieutenant Khalid Islambouli, who succeeded in assassinating Sadat during a military