Los Angeles Times
+ Your AuthorsArchive @latimes Bringing L.A. to the world and the world to L.A. Subscribe now: membership.latimes.com/ Dec. 27, 2019 1 min read

Scientific experts warned Congress a decade ago that just four teaspoons of a material widely used in medical devices — if spread by a terrorist’s dirty bomb — could contaminate up to 10 square miles of Manhattan.  https://www.latimes.com/politics/story/2019-12-27/cesium-137-dirty-bomb 

Called cesium-137, the material is used extensively in devices called irradiators, which sterilize blood at hundreds of American hospitals, blood banks and medical research centers.  https://www.latimes.com/politics/story/2019-12-27/cesium-137-dirty-bomb 

Despite the risks, a U.S. government agency has continued to license new irradiators and has declined to compel hospitals and other users to switch to safe and effective alternatives, a Los Angeles Times investigation has found.  https://www.latimes.com/politics/story/2019-12-27/cesium-137-dirty-bomb 

The potential danger is long-lasting: Cesium can keep emitting radiation for nearly 300 years.

Read more in this exclusive Times report:  https://www.latimes.com/politics/story/2019-12-27/cesium-137-dirty-bomb 

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