Twitter censors user for tweeting the address to the White House: A Twitter user shared a screenshot of his censorship notice. The user had been responding to the DHS tweeting about "See/Say Day," and had tweeted: "@DHSgov Send that memo to 1600 Penn Ave Wash DC in c/o: Joe Biden." Twitter claimed that this violated its "rules against posting private information." The user's account was locked until he deleted the tweet.