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Courtesy John Pemble/Iowa Public Radio

President Donald Trump addresses a joint session of Congress for the first time  Tuesday evening at the Capitol. The address comes a day after Trump gave an outline of his budget plan for Congress, which would increase defense spending and make cuts to domestic programs.

In 1957, Joel Healy witnessed one of the largest nuclear tests ever conducted on U.S. soil.

Healy was in the U.S. Army, stationed in the Nevada desert north of Las Vegas at Camp Desert Rock. He was 17 years old and a private first class at the time.

Healy drove dump trucks, moved materials, and built structures, like houses, that would be destroyed by the explosions so the Army could study the effects of a nuclear blast. He also helped build the towers where many of the bombs were detonated.