Alfredo Trejo, 18, came to the U.S. from El Salvador in 2014 as an unaccompanied minor and now lives with his aunt in Virginia. He applied for asylum, and, like many others, he says he fled persecution from gang members in San Salvador. David Gilkey/NPR hide caption

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More than 500 Cuban immigrants hoping to reach the United States live at this school turned shelter in northern Costa Rica after Nicaragua, a Cuban ally, closed its border to them. Carrie Kahn/NPR hide caption

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Cubans Rushing To Enter U.S. Hit Roadblock In Central America
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Washington Gov. Jay Inslee Ted S. Warren/AP hide caption

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Gov. Jay Inslee on Morning Edition, Nov. 18, 2015
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A steamboat drifts along the Mississippi River in New Orleans. A group called America's Watershed Initiative says "funding for infrastructure maintenance means that multiple failures may be imminent" for the lower Mississippi River basin. Mario Tama/Getty Images hide caption

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The SS United States ocean liner, seen here docked in Philadelphia in 2013, was built in 1952 for United States Lines in an attempt to capture the trans-Atlantic speed record. Landov hide caption

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