NPR News

People in much of Minnesota, northwestern Pennsylvania and Tucson, Ariz., are getting the best bargains from the health care law's new insurance marketplaces. Their premiums run half as much as those in the country's most expensive markets.

The 10 regions with the lowest premiums in the nation also include Salt Lake City, all of Hawaii and eastern Tennessee. This ranking is based on the lowest cost of a silver plan, the midrange plan most consumers are choosing.

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.