the stories we heard of them mixing in pubs, almost even drinking alcohol, they will do whatever it takes to go undetected, because they know that there will be people out there looking for this sort of behavior, and they are the more -- in fact, i would be more worried about those because they would be the ones who would be able to reap much more devastation. that begs the question, what do we do about this type of person who doesn't change his or her behavior and blends in with everybody else, and the report mentioned it accurately. it's like looking for a needle in a haystack. that leaves us only with one other option. that's what i speak about a lot. that is that we have to ask the question what makes angry young muslims at the age of 16, 17, 18 years old or around there, join this form of or this phenomenon in the first place. why do they believe that this is a legitimate vent for any frustrations they may be feeling and why do they no longer join militant communist organizations as they perhaps may have done in the '50s and '60s. wh >> what london of the anderson, a you think of that's wh c where ment h education. on the organized an as some t egypt wi >> right. i apprecia w what to do, the to the heroes who saved so many lives here, and to the victi the day of the marathon, heath mangled. this picture wa her injured foot. w people's everybody, i think all of us turned aro i know i saw a i saw people crying somethin the entranc but as people kept running by and a woman luck >> to t exit where th thought if i it will sc ground that i s >> what's going throug >> they >> they put yo >> they put me abo foot, t all the little bones in my heel to keep your foot. >> so in th l keeping the f i think >> do you think a l day, or d think >> i pref that's not what with. >> i'm th experience, my initial, you know, ta own lives at risk because they and then maybe details late >> no. >> just g >> i wish yo >> th t other victims' ac360.com. coming up tonight, new inform we're live uns inclu each there were nev tamerlan wasn't e >> t of the house waltham. something else didn't make sense.