Minnesota Public Radio slideshow:
Civil liberties groups fear travel "surveillance"
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Sean Gentry, left, and Bob Zimmerman are waiting for flights in Minneapolis-St. Paul International Airport. Gentry says in passenger screening it should be "very clear" where personal passenger information is going. Zimmerman says he'd prefer personal information be kept out of it. (MPR Photo/Jeff Horwich)

Sean Gentry, left, and Bob Zimmerman are waiting for flights in Minneapolis-St. Paul International Airport. Gentry says in passenger screening it should be "very clear" where personal passenger information is going. Zimmerman says he'd prefer personal information be kept out of it.

(MPR Photo/Jeff Horwich)
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