The majority of hazardous chemicals shipped across the U.S. travel by train, so Friday the Secretary of Homeland Security unveiled a plan he says will make the rails safer.
Starting next year all trains, freight or passenger will be kept in secure areas when they are not in use.
There will also be much more attention paid to where dangerous cars are.
"By next year, we will insist of knowing the exact location of a specific dangerous chemical car within five minutes of making the request. We will also require that the railroad give us the capability in a 30 minute period to find all the high-risk cars located in a geographic area," explained Michael Chertoff, Homeland Security Secretary.
There is another part of the plan, trains carrying dangerous chemicals will not be allowed to sit still for long.