hey #dhsi18 participants: DID YOU KNOW that your hashtagged tweets are being surveilled? our #survDH class is watching you... and giving you an increasingly rare opportunity- simply tweet using the hashtag #OptOutDH !pic.twitter.com/e33T4vgtCZ
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more