Tweeting a historical event as it happened can be enlightening, such as when the History Channel reenacted the sinking of the Titanic. It provides the context and time scale that you might miss reading a news story. However, the CIA just showed why this isn't always a good idea. The agency decided to recreate the raid that killed Osama Bin Laden through 'live' tweets this weekend, starting with the operation's approval and ending with confirmation of the terrorist leader's death. It was supposed to be informative, but it ended up rubbing a lot of people the wrong way... and it's not hard to see what triggered that outrage.