In Granite City, Ill., 500 laid-off steelworkers are being called back to work, a result of President Trump's steep tariffs that go into effect Friday on imported steel. David Schaper/NPR hide caption

David Schaper
The Winners And Losers Of Trump's $1.5 Trillion Infrastructure Plan
Damage done to the Hoboken Terminal in New Jersey after a commuter train crash in September 2016. Federal investigators attribute this accident and one in New York to engineers' untreated sleep apnea. Chris O'Neil/AP hide caption
John Mahoney, best known as Kelsey Grammer and David Hyde Pierce's curmudgeonly father on Frasier, has died. He was 77. Matt Sayles/AP hide caption
An aerial view of the site in Cayce, S.C., where an Amtrak passenger train (bottom right) slammed into a CSX freight train early Sunday morning. At least two Amtrak crew members were killed and more than 100 people injured, authorities said. Jeff Blake/AP hide caption
A service dog named Orlando rests on the foot of its trainer, John Reddan, while sitting inside a United Airlines plane at Newark Liberty International Airport during a training exercise last year. United Airlines wants to see more paperwork before passengers fly with an emotional support animal. Julio Cortez/AP hide caption
Infrastructure Experts Wondering Where Funding Would Come From For Trump's Plan
Vehicles are seen at the toll bridge of the Holland Tunnel as snow covers the road during a snowstorm on Feb. 9, 2017, in Jersey City, N.J. More states are turning to tolls as a way to fund long-standing transportation needs. Julio Cortez/AP hide caption
More States Turning To Toll Roads To Raise Cash For Infrastructure
A damaged Amtrak train car is lowered from an overpass Tuesday at the scene of a train crash onto Interstate 5 a day earlier in DuPont, Wash. Federal investigators say they don't yet know why the Amtrak train was traveling 50 mph over the speed limit when it derailed. The rail cars will be taken to a nearby military base for closer analysis. Elaine Thompson/AP hide caption
Derailment Probe Looks At Speed, As Critics Cite Amtrak's 'Lax Safety Culture'
Signs warn drivers of icy road conditions on Interstate 66 in Fairfax County, Va., in March 2014. The state's Department of Transportation recently added rush hour tolls to the road, using dynamic pricing, which continuously adjusts the cost based on congestion. Karen Bleier/AFP/Getty Images hide caption
Chicago Mayor Rahm Emanuel, (center) with other mayors from the U.S., Mexico and Canada at the summit, says, "There is an absence of leadership out of Washington" on climate change. Scott Olson/Getty Images hide caption