Thunderstorms cause major travel delays, ground stops

Storms in the Midwest caused widespread travel troubles on Tuesday. More than 7,000 flights were delayed or canceled, with the biggest backlogs in Chicago and New York. Kris Van Cleave reports from Newark Liberty International Airport in New Jersey, and Rob Marciano has the…

Severe thunderstorms raked Chicago and the Midwest Tuesday, triggering tornado warnings and disrupting hundreds of flights as another round of dangerous weather swept across the US.