People attend a demonstration calling on the government to rescue the kidnapped girls of the government secondary school in Chibok, in Abuja, Nigeria, Thursday, May 22, 2014. Scores of protesters chanting "Bring Back Our Girls" marched in the Nigerian capital Thursday as many schools across the country closed to protest the abductions of more than 300 schoolgirls by Boko Haram, the government's failure to rescue them and the killings of scores of teachers by Islamic extremists in recent years. (AP Photo/Sunday Alamba)