statement and don't take anything out of context. >> reporter: it is sunday morning, the beginning of the school week in cairo. at 7:05 a.m. two teenage boys are about to leave the apartment building where nermeen khalifa lives with her sons. when we come back, are these two young men michael shannon's kidnapped sons? ♪ ♪ ♪ ben! ♪ [ train whistle blows ]