On September 11th 2001, one of the most tragic events in the history of the 21st century took place. Twelve years later this day remains etched in the memories of a great number of people and particularly on the spot (now a memorial) where this  very uncommon tragedy unfolded under the open skies of New York City. Families in tears stand there in the front of the names of the victims, tourist are grinning like in an amusement park, motionless police officers in great number keep nearby, while the constant and regular number of aircrafts that continue to take the same fly route and contribute to create a psychosis.