Sixty different materials go into the printing of a U.S. passport. That little booklet of a thing contains up to 30 pieces of security—and you can’t see most of them. And good luck trying to get details on these security features.
The author of an article on gizmodo.com points out that he tried to get specifics from Homeland Security, but that the “forensic lab’s experts couldn’t discuss the security.” The author then sought answers from passport and forgery experts.
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