Tweeting about the Olympics? Big Brother is watching you

If you’re watching the Winter Olympics and pounding out tweets about the action — or inaction, given the weather and all — the Department of Homeland Security (DHS) might be reading them. “[DHS] on Friday filed a privacy impact statement that revealed it is monitoring user activity on social media sites like Twitter, as well as posts and comments and a number of Web sites, to thwart potential terror threats and get information on possible disaster situations,” reported The P…