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(NECN: Mike Nikitas) - John Hartling, a recently retired air traffic controller from New Hampshire, is interviewed by NECN's Mike Nikitas.
On the morning of the September 11th attacks in 2001, John handled, for a time, the two jets, which crashed into the towers of the World Trade Center.
John says it is a day he'll "never forget."
John says he has learned that you "can't take anything for granted."