fighters. this is an issue that is well beyond it. as mike pointed out, it goes on the internet. a lot of the people we are tracking today, radicalizing jail as well that was the case of for example, the killer and the toulouse terrorist attacks against jewish kids in 2012 or the terrorists that followed just after the charlie hebdo attacks. juliette, in the short time we have left, can you explain the dangers law enforcement faces if neighborhoods like this. again we are getting reports of officers injured in this shootout, this raid. just the danger of going into neighborhoods like this where you don t know what you are facing or up against. reporter: it s simply, this is, these sweeps are happening very, very quickly. so that the normal approach of someone who might be a terrorist, which sometimes takes a long time. you make sure you protect the first responders and police officers. it s not happening right now.