MVRDV, the Rotterdam-based architectural firm that caused an uproar last week when they unveiled plans for a building that reminded a lot of people of 9/11, would like it very much if you would stop calling their offices and threatening their lives, please. Well, not you per se — because you presumably do not breathe exclusively through your mouth and have a "United We Stand" tattoo etched across your torso — but whoever has been leaving those kinds of messages, kindly stop.