Affiliate Mentality News Today

>> great. thank you so much, katy tur. well probably be back to you tonight. law enforcement officials say the tsarnaev officials are from russia, lived in krygyzstan. chechnya has been a breeding ground for terrorists. its not clear what the motive of the boston bombers is. david ignacias is with us. let me start with richard sh, t sense, we followed the wars as americans, not even involved in it. is it nationalistic? is it islamist? bl what is the state of the separatist movement right now? >>...