quite some time. it s still not clear how they were radicalized, where it started and who was the driving force. authorities also say the couple practiced their shooting at gun ranges, once just the days before they went on their deadly rampage killing 14 people. let s bring? justice reporter evan perez as well as phil mudd, former cia counterterrorism official. phil, what more are you hearing from your sources about the couples path to radicalization at this point? at this point, they believe that certainly the path to radicalization began much earlier. probably even before isis became well known. certainly not in the beyond the first year and a half ago when we first started hearing a lot about isis. so, that really then makes this a little more complicated because we do know that moments right before the attack began,
go long. we re following breaking news in the san bernardino terror investigation. just a while ago the fbi revealed significant new details about the two killers. as the investigation has progressed, we have learned and believe that both subjects were radicalized and have been for quite some time. now, how did that happen? the question we re trying to get at is how did that happen and by whom and where did that happen. and i will tell you right now we don t know those answers at this point. let s bring in our justice reporter evan perez following the investigation. what do you think led the fbi to reach this sort of interim conclusion? well, wolf, they ve had a little time to go through his communications, to find to talk to members of the family. and my understanding is they found that this radicalization path is not something that just
justice reporter evan perez. the former fbi assistant director and analyst tom fuentes and bob baer and terrorism analyst paul cruickshank. now intelligence says you can t really fight the spread of isis without defeating them significantly on the battle field in both iraq and syria. how significantly does isis need to be diminished on the ground for that to work? oh, i think it has to be absolutely we just simply can t bomb them. we have to look at the support they are getting around the gulf, saudi arabia and pakistan as long as this movement is being funded it will exist. the only way to end this thing is bring the conflict from the middle east to a conclusion and that should be our main concern. the bombing again will not do it alone. if the u.s. and its allies,
just over a year after she was allowed into this country, she carries out the deadliest domestic terror attack in the country since 9/11. a lot of questions being asked of the homeland security department. as f you heard from president obama last night, he said one of the things they re doing is reviewing this fiance visa process. it appears to have some gaps in it. pamela? especially if she was indeed radicalized before she came to the u.s., which is one of the working theories. also, evan, just reported that he said there s no specific and credible threat. we heard the same from him and president obama and others, what, two weeks before this attack in san bernardino. do those words mean anything anymore, in this age of isis? they really don t. actually, that s one of the things that jeh johnson has disliked about that phrase. no known credible threat to the country. it s a thing we hear before every holiday, before christmas, before july 4th.
in the community. as you can imagine, times of tragedy, people often turn to their faith to deal with such matters. nowhere was that more evident than this catholic mass i attended. one of the victims who died during the attack attended there. there s so much raw emotion, people openly weeping in church. it s going to take a very long time for things to quell down here. pamela? understandably. dan simon, sophia, thank you so much. homeland security chief jeh johnson is taking questions about last week s massacre. he said there are no credible terror threats on the u.s. but he s concerned about copycat and lone wolf attacks. cnn s justice reporter evan perez is in washington with more. evan? pamela, jeh johnson at this event sponsored by defense one, made a little news. he says that the his department, the homeland security department, is going to