![](http://www.alamy.com/thumbs/6/7156B71C-F405-41D7-9685-0C7BE86B1225/2EHA5EG.jpg)
United States Secret Service agents wait as President Barack Obama signs memorabelia before departing Gamesa Technology Corporation in Fairless Hills, Pa., April 6, 2011.
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Photo credit: © GM/Current Affairs / Alamy / Afripics
License: Licensed
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Keywords: fairless, hills, pa, usa