Improv Everywhere is famous for launching hilarious missions. Last January they decided to freeze 200 people inside the Grand Central Station hall. Now that the video got really popular (via youtube), people around the world (London - my favorite right after the NYC prank) were inspired and initiate similar missions. It does look like fun and if you think about it, there is sociopolitical criticism behind the idea of freezing people in a world always wanting to keep pace. It’s a good, thoughtful prank, though, isn’t it. Check out the video, more information and links after the jump.