I was listening to NPR a few months ago and they actually had a bit on tracking Twitter for gang activity and the ethics behind scanning twitter. Here's a link

I was listening to NPR a few months ago and they actually had a bit on tracking Twitter for gang activity and the ethics behind scanning twitter. Here's a link to the story [1]. One of the products they outline is called BlueJay [2] and scans for key words and locations. I guess NPR isn't popular among gang members or they would probably stop. [1] http://www.npr.org/blogs/alltechconsidered/2014/02/28/284131881/as-police-monitor-social-media-legal-lines-become-blurred http://www.npr.org/blogs/alltechconsidered/2014/02/28/284131... [2] http://brightplanet.com/bluejay/ http://brightplanet.com/bluejay/