Tuesday, April 23, 2013 CNN.com - Top Stories: Tracing their Caucasus roots CNN.com - Top Stories CNN.com delivers up-to-the-minute news and information on the latest top stories, weather, entertainment, politics and more. Tracing their Caucasus roots Apr 24th 2013, 00:45 CNN's Nick Paton Walsh describes the two suspected Boston bombers' background and their roots to the Caucasus region. You are receiving this email because you subscribed to this feed at blogtrottr.com. If you no longer wish to receive these emails, you can unsubscribe from this feed, or manage all your subscriptions Tweet