article_snippet: In terms of ideology, Boko Haram leader, Abubakar Shekau, has said that kidnappings and hostage-taking are approved in the Quran, a claim ISIS also makes.
article_snippet: Our hostages are Christians or corrupted Muslims who follow the Christian way," he said last year, referring to schoolgirls kidnapped in Chibok, Nigeria, most of whom remain missing.
article_snippet: ISIS later referred to the Chibok abductions in ISIS kidnapping of hundreds of Yazidi women and girls.