Account-1: @humanprogress (Twitter)Account-2: @humanprogressScholar: CatoDate: Sunday, December 13, 2015Retweets: 86 retweets(Twitter) Likes: 74 likesBody: U.S. death rates for both breast & prostate cancer have fallen sharply since the early 1990s http://buff.ly/1XyIAea Link: https://twitter.com/humanprogress/status/676169229645815808Social Action: authored a viral tweet