For all the good that has come from the internet, the online world has also served as a powerful device for recruiting terrorists and spreading their propaganda.A coalition of top technology companies is now trying to change that. Facebook, Google, Twitter and Microsoft announced on Monday that they have teamed up to fight the spread of terrorist content over the web by sharing technology and information to reduce the flow of terrorist propaganda across their services.
http://www.nytimes.com/2016/12/05/technology/facebook-and-other-tech-companies-seek-to-curb-flow-of-terrorist-content.html