** FILE ** In this Tuesday, Nov. 22, 2011, file image from Egyptian state television, three American students are displayed to the camera by Egyptian authorities following their arrest during protests in Cairo, where an Egyptian official said they were throwing firebombs at security forces. A spokeswoman for the American University in Cairo identified the students as Luke Gates, a 21-year-old Indiana University student from Bloomington, Ind.; Derrik Sweeney, a 19-year-old Georgetown University student from Jefferson City, Mo.; and Gregory Porter, a 19 year-old Drexel University student from Glenside, Pa. (AP Photo/Egyptian TV, File)

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** FILE ** In this Tuesday, Nov. 22, 2011, file image from Egyptian state television, three American students are displayed to the camera by Egyptian authorities following their arrest during protests in Cairo, where an Egyptian official said they were throwing firebombs at security forces. A spokeswoman for the American University in Cairo identified the students as Luke Gates, a 21-year-old Indiana University student from Bloomington, Ind.; Derrik Sweeney, a 19-year-old Georgetown University student from Jefferson City, Mo.; and Gregory Porter, a 19 year-old Drexel University student from Glenside, Pa. (AP Photo/Egyptian TV, File)