Computer breakdown sows chaos across US air travel system
A system used for air travel broke down late Tuesday, leading to all planes being grounded for some time.
LEARN MOREMost airports in the U.S. held planes at the gate for about two hours on the morning of Jan. 11 while the situation was resolved.
Eighty projects will improve roads, rail, ports, transit systems and other surface transportation infrastructure in 37 states.
Unions and regulators say the second crew member plays a crucial safety role in helping operate the train and respond to emergencies.
The Francis Scott Key Bridge took five years and $60 million to build in 1970, but will cost considerably more to rebuild this time around.
Researchers say poor air quality as a result of wildfires will cause thousands of additional deaths per year in the U.S.
Authorities said the 18-year-old high school student wrote a 129-page manifesto detailing plans to gain notoriety by shooting up a school.
An investigation has been launched after video posted to social media appears to show a Colorado Rockies coach in the plane's cockpit during flight.