CORRECTION - Nabil (C) and Hani (R), the sons, and Dema Faham, the wife of Nobel prize-winning Egyptian-American chemist Ahmed Zewail, mourn along with other relatives and officials during the second part of his funeral procession at the Zewail City of Science and Technology in Cairo on August 7, 2016. Nobel prize-winning chemist Ahmed Zewail received a funeral with military honours attended by Egypt's president and top state officials Sunday in Cairo. Zewail, who served as a science and technology advisor to US President Barack Obama, died Tuesday in the United States. He was 70. / AFP PHOTO / KHALED DESOUKIKHALED DESOUKI/AFP/Getty Images

CORRECTION - The ambulance carrying the body of Nobel prize-winning Egyptian-American chemist Ahmed Zewail, arrives at the venue of the second part of his funeral procession at the Zewail City of Science and Technology in Cairo on August 7, 2016. Nobel prize-winning chemist Ahmed Zewail received a funeral with military honours attended by Egypt's president and top state officials Sunday in Cairo. Zewail, who served as a science and technology advisor to US President Barack Obama, died Tuesday in the United States. He was 70. / AFP PHOTO / KHALED DESOUKI / The erroneous mention[s] appearing in the metadata of this photo by KHALED DESOUKI has been modified in AFP systems in the following manner: [The ambulance carrying the body of] instead of [the wife of]. Please immediately remove the erroneous mention[s] from all your online services and delete it (them) from your servers. If you have been authorized by AFP to distribute it (them) to third parties, please ensure that the same actions are carried out by them. Failure to promptly comply with these instructions will entail liability on your part for any continued or post notification usage. Therefore we thank you very much for all your attention and prompt action. We are sorry for the inconvenience this notification may cause and remain at your disposal for any further information you may require.KHALED DESOUKI/AFP/Getty Images

CORRECTION - The ambulance carrying the body of Nobel prize-winning Egyptian-American chemist Ahmed Zewail, arrives at the venue of the second part of his funeral procession at the Zewail City of Science and Technology in Cairo on August 7, 2016. Nobel prize-winning chemist Ahmed Zewail received a funeral with military honours attended by Egypt's president and top state officials Sunday in Cairo. Zewail, who served as a science and technology advisor to US President Barack Obama, died Tuesday in the United States. He was 70. / AFP PHOTO / KHALED DESOUKI / The erroneous mention[s] appearing in the metadata of this photo by KHALED DESOUKI has been modified in AFP systems in the following manner: [The ambulance carrying the body of] instead of [the wife of]. Please immediately remove the erroneous mention[s] from all your online services and delete it (them) from your servers. If you have been authorized by AFP to distribute it (them) to third parties, please ensure that the same actions are carried out by them. Failure to promptly comply with these instructions will entail liability on your part for any continued or post notification usage. Therefore we thank you very much for all your attention and prompt action. We are sorry for the inconvenience this notification may cause and remain at your disposal for any further information you may require.KHALED DESOUKI/AFP/Getty Images

Students of Zewail university attend the second part of the funeral procession of Nobel prize-winning Egyptian-American chemist Ahmed Zewail at the Zewail City of Science and Technology in Cairo on August 7, 2016. Nobel prize-winning chemist Ahmed Zewail received a funeral with military honours attended by Egypt's president and top state officials Sunday in Cairo. Zewail, who served as a science and technology advisor to US President Barack Obama, died Tuesday in the United States. He was 70. / AFP PHOTO / KHALED DESOUKIKHALED DESOUKI/AFP/Getty Images

Students of Zewail university attend the second part of the funeral procession of Nobel prize-winning Egyptian-American chemist Ahmed Zewail at the Zewail City of Science and Technology in Cairo on August 7, 2016. Nobel prize-winning chemist Ahmed Zewail received a funeral with military honours attended by Egypt's president and top state officials Sunday in Cairo. Zewail, who served as a science and technology advisor to US President Barack Obama, died Tuesday in the United States. He was 70. / AFP PHOTO / KHALED DESOUKIKHALED DESOUKI/AFP/Getty Images

Students of Zewail university attend the second part of the funeral procession of Nobel prize-winning Egyptian-American chemist Ahmed Zewail at the Zewail City of Science and Technology in Cairo on August 7, 2016. Nobel prize-winning chemist Ahmed Zewail received a funeral with military honours attended by Egypt's president and top state officials Sunday in Cairo. Zewail, who served as a science and technology advisor to US President Barack Obama, died Tuesday in the United States. He was 70. / AFP PHOTO / KHALED DESOUKIKHALED DESOUKI/AFP/Getty Images

Nabil (2-L) and Hani (4-L), the sons of Nobel prize-winning Egyptian-American chemist Ahmed Zewail, attend the second part of his funeral procession at the Zewail City of Science and Technology in Cairo on August 7, 2016. Nobel prize-winning chemist Ahmed Zewail received a funeral with military honours attended by Egypt's president and top state officials Sunday in Cairo. Zewail, who served as a science and technology advisor to US President Barack Obama, died Tuesday in the United States. He was 70. / AFP PHOTO / KHALED DESOUKIKHALED DESOUKI/AFP/Getty Images

Students of Zewail university attend the second part of the funeral procession of Nobel prize-winning Egyptian-American chemist Ahmed Zewail at the Zewail City of Science and Technology in Cairo on August 7, 2016. Nobel prize-winning chemist Ahmed Zewail received a funeral with military honours attended by Egypt's president and top state officials Sunday in Cairo. Zewail, who served as a science and technology advisor to US President Barack Obama, died Tuesday in the United States. He was 70. / AFP PHOTO / KHALED DESOUKIKHALED DESOUKI/AFP/Getty Images