Account-1: @humanprogress (Twitter)Account-2: @humanprogressDate: Saturday, December 26, 2015Retweets: 92 retweets(Twitter) Likes: 67 likesBody: Mass killings of civilians by their own governments have declined with communism's fall. http://buff.ly/1Ip5CNz Link: https://twitter.com/humanprogress/status/680842799042969602