Jack Dorsey attempt to entice new users, since the number of tweets per day had dropped to about 300 million in January 2016 compared to about 500 million in September 2013 and its peak of 661 million in August 2014. On November 22, 2016, Dorsey was briefly suspended from his own Twitter user account with 3.9 million followers. After restoring the account, Dorsey tweeted the suspension was due to an "internal mistake". In February 2017, Dorsey and Executive Chairman Omid Kordestani matched a $530,000 donation to the American Civil Liberties Union (ACLU) raised by Twitter staffers. Their match brought the total donation
Terrorism and social media to Prevent Terrorism and Preserve Innovation." At the hearing, members heard testimony from William McCants, an analyst for the Center for Naval Analyses, Aaron Weisburd, director of the Society for Internet Research, Brian Jenkins, senior advisor for the Rand Corporation and Evan Kohlmann, senior partner from Flashpoint Global Partners. McCants stated that while terror groups were actively using social media platforms to further their goals, research did not support the notion that the social media strategies they adopted were proving effective: We are talking about a relatively small number of people. Because the number of people is so small, it