David J Haas
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David J. Haas received his BA in Physics and PhD in Biophysics from SUNY Buffalo. He joined Philips Electronic Instruments in 1970 Mt. Vernon NY as principal X-ray scientist, designing some of the first airport X-ray scanners used worldwide. Conceiving the idea of self-expiring visitor badges (changes color in one day to prevent reuse), David and his wife, Sandra, formed Temtec, Inc. in 1981 and manufactured visitor and temporary IDs for more than 20 years, selling the company in 2002.
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E-passports in border processing
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