Life after a Tweet

A tweet is short (and I am told, in china too, its substitute like Sina Weibo has a 140 characters upper bound! :)) and real time. What interests is life after the tweet.

• When US went into Pakistan, US forces had practiced, had plenty of firepower and stealth, backup fighting force and eyes on the sky, I am sure. As we all now know, there was someone tweeting about the choppers even as the operation was underway, raising a severe security issue. Should US have considered shutting down twitter for an hour as a standard operational procedure before going in?
  
• Then I heard the story of this woman on the radio who was unhappy with the service at the bar and tweeted. A few minutes later, the manager comes to the bar and escorts her out! Life after the tweet is also swift.