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VIDEO: 3D printers have been used to create incredible things, from robots to prosthetic arms. Now the U.S. Marine Corps have used the technology to make a 3D-printed concrete footbridge. VOA traveled to Camp Pendleton in California to take a look.

ON THIS DAY IN AMERICAN HISTORY On April 8, 1935, Congress establishes the Works Progress Administration (WPA). The goal of the WPA was to give jobs to the millions of Americans left unemployed by the Great Depression. The jobs were focused on public building projects that would not interfere with privately held businesses. When the WPA was disbanded in 1943, it had employed more than 8.5 million Americans on 1.4 million public projects. While impressive, that only represented about one quarter of the nation’s unemployed.

Four months ago, Pete Buttigieg, the 37-year-old mayor of South Bend, Indiana, was a flat line on the political landscape outside of, well, Indiana. But after announcing a presidential exploratory committee in mid-January, he’s everywhere.

Protecting the president of the United States involves far more than being willing to step into the path of gunfire. As part of their extensive training — ranging from firearms to first aid — all of the several thousand Secret Service agents and officers also have to learn how to drive defensively.

VIDEO: California is experiencing a super-bloom of poppy flowers this spring, with new fields blooming throughout the southern part of the state following massive rains that ended a long drought. The blooms have attracted tens of thousands of people, causing massive traffic tie ups in small cities such as Lake Elsinore.

On the sidelines of two days of events marking the 70th anniversary of the founding of the North Atlantic Treaty Organization, the United States signed a bilateral defense cooperation agreement with Hungary, an act that went almost unnoticed by American media.