Mission: Impossible 4: Ghost Protocol Easter Egg - A113 Ring

As you may already know, Brad Bird hides A113 in all of his movies, including this one. It is when showing the flashback of what happened to Agent Hanaway. Watch when he puts on his needle ring. The camera shows it for about 3 seconds. It says A113. Director Brad Bird hides it in his movies because A113 was his Classroom at his Art school.