Martin Bashir 04/22/13

Tamerlan Tsarnaev, his family and a possible pull toward radicalization

NBC’s Adrienne Mong joins Martin Bashir by phone from Russia to help stitch together what we know about Tamerlan Tsarnaev, his family, his possible radicalization, and his travels in Russia last year; then, Georgetown’s Anne Speckhard and former Secret ... more Duration: {{video.duration.momentjs}}