On the morning of 9/11, air traffic controller Bart Avery was headed to work in Palmdale, California. His control center was in charge of air traffic for the Southwestern United States. Prior to his arrival, he wasn't aware of the attacks back East. It wasn't until the security guard at the control center, whom he had known for years, asked him for his security identification. Avery said he knew something wasn't right that day.

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