since 9/11. >> i want to play something that senator lieberman said, former senator lieberman said at the hearing. >> even members of the tsarnaev family including tamerlan's wife could have saved lives including tamerlan's if they had said something or asked someone for help. >> do you still have questions about tamerlan tsarnaev's family and what they knew, especially the wife? >> especially the wife. they're living in a small apartment. the pressure cookers are inside the apartment. we know they had at the time executed the search warrant up to ten explosive devices. the idea she knew nothing about that is very difficult for me to believe. she's radicalizing along with him. i think every step of the way. and is right in the middle of this. i think she does have information. i think she is in the sites of the fbi right now. they are looking at her very closely. with respect to the mother i think she radicalized him and the father i think there is a reason why he has declined his states. >> what is the reason?