Retrieved April 23, 2016. ↑ "Bomb Kills 20 in Northern Nigeria – Al Jazeera America". Retrieved April 23, 2016. ↑ "Suicide Attacks in Cameroon Kill More Than a Dozen – Al Jazeera America". Retrieved April 23, 2016. ↑ "Suicide Bombs Kill 64 in Nigeria – Al Jazeera America".