The Hunt for Foley's Executioner
CABRERA: Now to the growing threat from the ISIS terror group. The U.S. plans to counter it. U.S. officials are telling CNN that military leaders are discussing the possibility of launching airstrikes on ISIS. Not only in Iraq now, but also in Syria. We're covering all the angles of this developing story. I want to start with Nick Paton Walsh. He is in London. Nick, it appears the execution of American journalist James Foley may have been a turning point for President Obama. The White House now calling for his beheading a terror attack on the U.S. and every American. What are you learning there in London about the hunt for Foley's executioners since he had a British accent?</s>NICK PATON WALSH, CNN INTERNATIONAL CORRESPONDENT: A very distinctive one, possibly even from London, too, if you watched that video, the black clad man behind Jim Foley who subsequently decapitates him. A very gruesome video indeed. But we understand British Security Services, they're going to focus on two or three things. There's the voice, of course, that accent. You may be able to match that with voice recognition software, the phone calls you may have tapped between Syria or Turkey and the United Kingdom. There, his eyes, quite high definition video, they could give something away, a lot of retinal scans done and also biometric possible that could be helpful in working out who he is and of course his physical build, too. A lot of speculation in the British media, trying potentially to match people who have been known to have gone to Syria to pursue jihad, maybe with the figure of this man in the video. I should point out, too, the British Security officials have been saying for a while now, at least 500 Britons have gone to Syria to pursue jihad. Some have come back, some haven't. The key question is what do you do if you establish his identity? We know they're holding still another American journalist. Do you try and capture or kill this man? Do you approach his family? What consequences could that move have for the hostages still held in Syria or Iraq -- Ana.</s>CABRERA: Nick, I'm wondering if you've heard anything there about a possible, you know, combined response with the U.S. and Europe since we know that the U.S. is considering options in terms of trying to get to ISIS and take out this terror group as it continues to spread and take over more territory.</s>WALSH: Well, Europeans perhaps have been discussing at length that non-lethal equipment they want to give for the Syrian more moderate opposition. That's part of the response against ISIS because idea is you have from the Syrian civil war they equipped an army that you're happy with to win and take over territory you push ISIS out from. The key thing U.S. officials are suggesting now is maybe they would hit ISIS inside Syria. That's vitally important because you can bash them as hard as you like inside Syria, they would simply retreat to kind of avoid the abyss that is northern Syria right now where they have a lot of territory that they control and then re-group there, moving back in. It has to be an all-out comprehensive approach, U.S. officials say, and you have to bear in mind, too, you know, many argue that in fact Washington sees ISIS as being extraordinarily bad threat for some time. They've known U.S. domestic opinion hasn't really wanted to get involved in military action in the Middle East. Perhaps Jim Foley's gruesome execution is a turning point where in fact they can say look, this is happening to Americans now. This is a threat we have to deal with and therefore make it easier for Americans to stomach the idea of another intervention in the Middle East -- Ana.</s>CABRERA: Right. With the idea to direct threat now. Nick Paton Walsh, thank you. Up next, we'll meet a man who felt compelled to join the rally in Ferguson. He takes to the streets every night. Not to loot, not to riot, but to care for the protesters and he brings them pizza.