terminal in an airport where we could see a lot of westerners who have arrived and where were the potential target. >> and it also means that it makes news in a bigger way in a lot of places away the world obviously. we're already hearing that because of this this morning, security is being tightened at all transportation centers, including train stations, subway stations. what do you know about the level of security in moscow and russia in general? are they up to our standards? >> in some respects they're even better. depending on your definition, the russians do a fantastic job on domestic security, but it speaks to the challenge they have with the chechens. testify's been successful on a repeated basis in doing these high profile spectacular attacks. so despite all the work that the domestic security service does there, they're still unable to prevent the chechens from launching these type of attacks if in fact that is who is behind it. >> always good to see you. thank you for your expertise.