
Egyptians light candles during a vigil for Christians who were killed in Libya, at St. Mark’s Cathedral in Cairo, Egypt, Tuesday, Feb. 17, 2015. An Islamic State video released on 15 February claimed to show the extremist group beheading 21 Egyptian Christians abducted in Libya more than a month ago. The Egyptian army responded on Feb. 16 by an airstrike against the militants targeting bases and weapons storage facilities in Libya. (AP Photo/Amr Nabil)