CLEAR Registered-traveler program $99.95 a year www.flyclear.com Credit: Martin O’Neil

In May, I gave up my fingerprints and a scan of my irises and joined a program called Clear at the ­British Airways terminal at John F. Kennedy International Airport in New York, thus becoming one of the first "registered travelers." The registered-traveler program is based on a set of standards, issued by the U.S. government, that's meant to speed "safe" passengers through airport security checks. Launched in 2005 and implemented by private contractors, it's designed to help airports improve efficiency by separating trusted travelers from the unknown. Clear opened the first dedicated ­registered-­traveler lane at Orlando International Airport in 2005, and four more have followed. A whole nation's worth, of course, is planned.

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