Earlier this month, the ACLU published a report alleging that it had obtained public records showing that social media user data such as location tracking, photos and hashtag usage may have been used by law enforcement to monitor activists and protests. ACLU claims that records show that Twitter, Facebook and Instagram provided user data access to Geofeedia, a developer of a social media monitoring program that is marketed to law enforcement agencies as a tool for such tracking. According to the report, law enforcement used the monitoring program to track protests in Baltimore and Ferguson, Missouri.