Democratic Sens. Chuck Schumer of New York and Bill Nelson of Florida talk to reporters about their effort to renew the ban on plastic firearms, at the Capitol on Monday. J. Scott Applewhite/AP hide caption
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A sign informs travelers about Millimeter Wave Detection technology used in full body scanners at Midway Airport in Chicago. The scanners produce less-revealing images than those that use X-rays. Scott Olson/Getty Images hide caption