>> do you think had there been an underground shelter, these lives could have been saved? >> oh, yeah. most xwedefinitely. >> cleaver attack in london. >> eye for an eye, tooth for a tooth. >> a city on alert and on edge. plus, the hero mother. a cub scout leader who talked down one of the terrorists breaks down her silence. >> were you not scared? >> no. >> why not? >> live in the "cnn newsroom." good morning. thank you for joining us. >> i'm brooke baldwin in a wet, rainy, stormy moore, oklahoma. the cruel and staggering scope of monday's tornado coming more fully into view. i don't know if you can hear the rain drops that have begun yet