to continue these bombings that are taking place. and, erika, as we know, this is a conventional war method going up against a very unconventional target in their way of operations, and some people are saying that this will just be a continued cycle in france potentially for attack, revenge, attack, revenge. but the defiant way for certain parisians is just to go back to their way of life and get back to going out onto the streets here in paris. thomas, we certainly heard a lot of that, that they didn t want to let the terrorists win, so they needed to continue on with life as they live it every day. thomas roberts live in paris tonight, thank you. as terrorism analysts from the u.s. and around the globe try to piece together what they know at this point, one week after the attacks, brussels, belgium, waits. that city is on lockdown tonight as we heard from claudio, amid the highest possible threat warnings in that country. it s a scenario that has even stunned some veteran terrori