travelers will see a show of force at train and bus stations as well as airports, heavy weaponry, bomb sniffing dogs. and the tsa will be doing random checks for explosives. the tsa also says it expects to screen 40% more passengers than usual, john. >> rene, what's the travel situation look like right now? >> okay. well, if we take a look at what's happening over the skies, this is the united states. and all of these white marks that you see there those are the aircraft flying in the air as we speak. so if we drill down just a little bit you see a lot of green. that is good. that means that these flights are on time. however, places like new york city you see a little bit of orange there. chicago, atlanta. so there are some delays, but for the most part where you look at this picture it looks pretty good. and if you are traveling by car, and many, many people are, these are going to be your trouble spots. chicago's i-90, that's a bottleneck situation. los angeles has its problem