Video appears to show some kidnapped Chibok girls alive

A schoolmate says she cried with joy when she saw a Boko Haram video appearing to show some of Nigeria's kidnapped Chibok girls, with images of tearful parents recognizing their daughters, who have not been heard from since the mass abduction by the Islamic extremist group Boko Haram two years ago.
     
"The moment I saw them and recognized their faces - Saratu Ayuba, Jummai Mutah, and Kwazigu Hamman - I started crying, with tears of joy rolling down from my eyes, thanking God for their lives," she says.
     
The young woman, who now calls herself Saa and is going to college in the United States, was among several dozen who escaped, jumping down from the back of an open truck, when Islamic extremists of Boko Haram seized 276 girls who had gathered to write science exams at the Government Girls Secondary School in the northeast town of Chibok.
     
Saa spoke in a statement through the Education Must Continue Initiative, a Washington-based project started in response to the mass kidnapping by Nigerian Emmanuel Ogede, which is sponsoring her education and that of nine other students who escaped that night.
     
"Seeing them has given me more courage not to give up. Seeing them gives me the courage to tell the world today that we should not lose hope," Saa said. "Let's keep praying and campaigning for #BringBackOurGirls. I want the world to raise their voice. Let's not stop until the government hears us and does something about it."
     
CNN on April 13 aired the video, believed made in December, of girls wearing the Islamic hijab, and of one mother reaching out to a computer screen as she recognizes her daughter.
     
"My Saratu," she wails.
     
While Boko Haram is thought to have abducted thousands...