What we know about deadly radiation explosion at Russian military site

What we know about deadly radiation explosion at Russian military site

An explosion at a Russian missile testing site last week killed at least seven people and caused widespread fears of a radiation leak. While officials offered little clarity, analysts believe the Russians were testing a nuclear-powered cruise missile – one President Vladimir Putin boasts can’t be stopped by U.S. missile defenses. William Brangham talks to Angela Stent of Georgetown University.

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