phones to use them and attackers cannot. >> making sure that terrorists don't have access to each other in making sure they don't get information from public sources that they can use to our detriment. >> reporter: some police now exercise how to counter the tactics used in mumbai as they watch for if you innovations in the terrorist playbook. >> you have to be careful not to fight yesterday's war and look over the horizon. >> am mumbai is the template for an attack here, at least new york, washington and los angeles will be better prepared. >> i hope it wouldn't last more than 30 minutes before we contain it and neutralize it. >> reporter: making preparations like this is expensive. not every city can afford to do. not every city is ready for an attack like mumbai. jeanne meserve, cnn, new york. >> so much serious news. we have a get here, a man who gives you a few reasons to laugh right after this. look familiar? there he is.