Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
Brian Todd reports on what safety experts say about high-speed rail: how fast is too fast?
A heartbroken father and several friends talk about an American woman killed in a deadly train accident in Spain.
CNN's Tom Foreman takes a closer look at human error and its possible role in several recent transportation accidents.