The L.A. Times ran this correction yesterday:
Polonium-210: An article Monday in Section A about the radioactive isotope that killed Russian ex-spy Alexander Litvinenko said that traces of polonium-210 had been found in the U.S. and Europe; no traces have been found in the U.S. The article called polonium-210 the most stable of the element’s isotopes; two isotopes are more stable. The article said polonium-210 completely decays into lead after about three years; about 99.9% decays in that time.
Courtesy of Cathy’s World commenters “doug” and Bradley J. Fikes, I told you about two of these errors on January 3.