In this Tuesday, Feb. 17, 2015 photo, Pope Tawadros II, the 118th pope of the Coptic Church of Egypt, leads a mass for the Egyptian Christians who were killed in Libya, at St. Mark's Cathedral in Cairo, Egypt. Egypt's Coptic Christians have become the preferred target of Islamic State radicals operating in the Arab world's most populous nation, seeking to sow discord, undermine President Abdel-Fattah el-Sissi, and split the country. (AP Photo/Amr Nabil, File)
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