Is Twitter public? Sorta. But you're still a jerk if you quote tweets inappropriately. Here's how not to be a jerk: http://studentactivism.net/2014/03/13/six-questions-every-journalist-should-ask-before-quoting-social-media-posts/ …
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