concern. these types of radicalized young people perhaps going to the region coming back into europe and launching these types of attacks. we ve seen the lone wolf attacks before. generally u.s. has come to believe that many of them are self-radicalized people with long histories of criminal violent behavior. that has been something that they ve been watching. but the u.s. security services have very directly in recent months been working with the french because of the concerns. and in fact the counterterrorism officials i was speaking to just yesterday, said they ve been having greater success in trying to identify these people and trying to catch them before they come back into europe. so this has been a huge concern. the forensics of this attack as jim and chris were talking about, is going to be something that the fbi, u.s. counterterrorism officials are going to want to look at. how was it carried out? what type of weapons were used?
quickly before they can attack again. that a supreme concern. remember in europe there are borders but you can move from france to germany to other countries within the e.u. without passing any border checkpoints, even having to show your passport. it s very easy to get around and a lot of transportation options so it s easy for them to run and hide. the other supreme focus of counterterrorism officials is they look at this video we re showing again now is the sophistication of how this attack was carried out which indicates training on the part of these attackers. the way they picked their targets, the way they used their weapons. the way they moved quickly to kill frankly, and even just the information they had that the employees of this magazine were present in the office today, many as you said earlier, anderson often aren t in the office. how did they know that? how did they move so quickly and
hidden bomb, the terror group said it learned from past mistakes fashioning improvised explosive devices from clothing and rags. fox news has chosen as you can see to blur the images. al qaeda in yemen s master bomb maker is ibrahim al-asiri and most lethal group by counterterrorism officials attempt to explain a way why there is not been another attempt to use non-metallic explosives in four years saying the technology wasn t ready. the brothers in the external operating committee did not give us a green light until recently. i think they have developed other bombs that are more effective. that could be the reason for their go-ahead. most concerning to u.s. officials that the claims in the magazine dove stale with the recent assessment of tsa administrator who confirmed to fox news that the group s tactics are evolving even at one point, experimenting with surgically implanted devices before abandoning the concept as inefficient and pursuing other options.
and joining me now is new york times national security correspondent mark ma zetty. mar mark, in the midst of all we ve been covering about the torture report and issues of isis, for this to happen, it was logical that people would be concerned that this was a lone wolf somehow inspired by isis. it does seem like this is a case of someone with a very specific criminal past and his own behavior issues and criminal case pending. right. i mean, it is easy for people under any kind of banner to carry out violence so we have to sort of wait and let things settle to find out exactly what the facts are. as we found out in this country, there are people so-called lone wolves who carry out attacks, whether it was ft. hood or other attacks. so to try to draw conclusions about why this person did this at this moment i think is a little too soon. again, the counterterrorism
you might to want take it. you want to be careful, too, because you could be shot in the back. authorities are there, they re watching, listening and they ll be ready to move at the first opportunity they get. jim cavanaugh, thanks very much. thanks, joy. we re also following breaking developments in this hour outside philadelphia where at least five people have been killed in a shooting spree and the suspected killer is still at large. police discovered the victims all shot at close range in three separate locations this morning. s.w.a.t. teams have now surrounded a home where the suspect, described has a military veteran, has barricaded himself. some homes in the area have been evacuated and residents are being told to stay inside. and our coverage out of sydney continues as we ll look at lone wolf attacks. how do counterterrorism officials respond to similar situations here at home? what does today s standoff mean in the fight against the coalition of isis?