Independence Day

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Fireworks can be seen from the Top of the Town as they explode over the National Mall to celebrate Independence Day, Arlington, Va., Wednesday, July 4, 2012. (Andrew Harnik/The Washington Times) (Andrew Harnik/The Washington Times)

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Washington D.C. fireworks can be seen from the Top of the Town as they explode over the National Mall to celebrate Independence Day. (Andrew Harnik/The Washington Times)

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Fireworks explode over the Philadelphia Museum of Art during an Independence Day celebration, in Philadelphia. (AP Photo/Matt Rourke)

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Tourists watch Independence Day weekend fireworks explode over Caesar's Palace as the Bellagio fountain show plays simultaneously, in Las Vegas. (AP Photo/Julie Jacobson)