Three minutes of silence 14 September 2001 Please credit NATO photos. (NATO Photo 584Kb) NATO staff gathered at noon today at the entrance to the Headquarters in Brussels to observe three minutes' silence as a mark of respect for the victims of the tragic events of last Tuesday in the United States. (NATO Photo 607Kb) NATO staff gathered at noon today at the entrance to the Headquarters in Brussels to observe three minutes' silence as a mark of respect for the victims of the tragic events of last Tuesday in the United States. (NATO Photo 552Kb) NATO staff gathered at noon today at the entrance to the Headquarters in Brussels to observe three minutes' silence as a mark of respect for the victims of the tragic events of last Tuesday in the United States. (NATO Photo 509Kb) NATO staff gathered at noon today at the entrance to the Headquarters in Brussels to observe three minutes' silence as a mark of respect for the victims of the tragic events of last Tuesday in the United States. - Ambassador R. Nicholas Burns, US Permanent Representative stands in the centre with the other Ambassadors. (NATO Photo 572Kb) NATO staff gathered at noon today at the entrance to the Headquarters in Brussels to observe three minutes' silence as a mark of respect for the victims of the tragic events of last Tuesday in the United States.