Safi, the father of Jordanian pilot Maaz al-Kassasbeh, who was killed by Islamic State (IS) group militants after he was captured by IS when his plane went down in Syria in December, greets a mourner who turned up to offer his condolences at the headquarters of the family's clan in the Jordanian city of Karak on February 4, 2015. Jordan executed two death-row Iraqi jihadists, including a woman, on February 4 after vowing to avenge the burning alive of its fighter pilot Maaz al-Kassasbeh. Jordan had promised to begin executing Islamic extremists on death row in response to the murder of the pilot. AFP PHOTO / KHALIL MAZRAAWI (Photo credit should read KHALIL MAZRAAWI/AFP/Getty Images)
