4/27 19:22: According to Mark Teahen of the Chicago White Sox, Major League Baseball sent out social media guidelines to the players and workers letting them know that “Big Brother” is watching what they tweet.

4/27 18:48: According to Joe Cowley of the Chicago Sun Times, he says that Major League Baseball has sent a “rule” out to the players and writers to watch what they tweet. Big brother is watching!

I’m wondering what caused this new rule? Was it Ozzie Guillen’s Comcast rant? Was it Jose Canseco going psycho? Or was it Mike Bacsik going racist?