Account-1: @humanprogress (Twitter)Account-2: @humanprogressDate: Tuesday, December 29, 2015Retweets: 115 retweets(Twitter) Likes: 74 likesBody: Mass killings of civilians by their own governments have declined with Communism's fall. http://buff.ly/1NVnlwx Link: https://twitter.com/humanprogress/status/681946099855265793Social Action: authored a viral tweet