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Kevin Ryan, former Site Manager for Environmental Health Laboratories, a division of Underwriters Laboratories (UL). Mr. Ryan, a Chemist and laboratory manager, was fired by UL in 2004 for publicly questioning the report being drafted by the National Institute of Standards and Technology (NIST) on their World Trade Center investigation. In the intervening period, Ryan has completed additional research while his original questions, which have become increasingly important over time, remain unanswered by UL or NIST.