Dog days of summer: Airport therapy via wagging tail

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In this photo taken Tuesday, May 21, 2013, Volunteers with Pets Unstressing Passengers (PUPs) from left: Marwick Kane with Kai, Lou Friedman with Hazel, and Bod Lederfine with Maggie Mae, walk around the Los Angeles International Airport terminal. The Los Angeles International Airport has 30 therapy dogs and is hoping to expand its program. The dogs are intended to take the stress out of travel: the crowds, long lines and terrorism concerns. (AP Photo/Damian Dovarganes)
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