Want to get your steps in? There are some airports in the U.S. where getting to your gate or switching terminals will give you the longest walks. CBS News travel editor Peter Greenberg has more.

(Photo by Jim Vondruska/Getty Images)

<p>Want to get your steps in? There are some airports in the U.S. where getting to your gate or switching terminals will give you the longest walks. CBS News travel editor Peter Greenberg has more.</p>
<p>(Photo by Jim Vondruska/Getty Images)</p>

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