Account-1: @humanprogress (Twitter)Account-2: @humanprogressDate: Saturday, July 30, 2016Retweets: 191 retweets(Twitter) Likes: 152 likesBody: When communism fell, so did mass killings. http://buff.ly/2aiKEkp Link: https://twitter.com/humanprogress/status/759492322937765888Social Action: authored a viral tweet