Fraught relatives of almost 300 schoolgirls abducted in Nigeria have identified only four of the young women in a propaganda video published by their captors. The recording, released by Boko Haram on Monday, showed more than 100 young women in black and grey veils chanting verses from the Koran. The Islamic extremist group?s leader, Abubakar Shekau, said they were the schoolgirls captured from Chibok in the north-east of the country last month and that they had been ?liberated? and converted to Islam. However, a community leader from Chibok, whose younger sister is among the missing, said that despite successive screenings of the video to parents and classmates since Monday, only four girls...