Russia’s "dirty bomb" claim denounced by U.S.

Russia’s general in charge of nuclear defense claimed that Ukraine is in the final stages of building a so-called dirty bomb and could use it against its own people. The U.S. dismissed Russia’s allegation as “transparently false.“ Holly Williams has the latest. #news #russia #ukraine “CBS Evening News with Norah O’Donnell“ delivers the latest news and original reporting, and goes beyond the headlines with context and depth. Catch the “CBS Evening News“ weeknights at 6:30 p.m. ET on the CBS Television Network and at 10 p.m. ET on the CBS News app. Subscribe to the “CBS Evening News“ YouTube channel: Watch full episodes of “CBS Evening News“: Follow “CBS Evening News“ on Instagram: Like “CBS Evening News“ on Facebook: Follow “CBS Evening News“ on Twitter: Download the