The Old Guard prepares cannons for July Fourth

The Old Guard prepares cannons for the boom during Tchaikovsky's "1812 Overture" at the conclusion of the "A Capitol Fourth 2011" concert.

The cannon will be fired during Tchaikovsky's "1812 Overture" at the close of the "A Capitol Fourth 2011" concert on Monday, July 4, 2011.  (Drew Angerer/The Washington Times)

The cannon will be fired during Tchaikovsky's "1812 Overture" at the close of the "A Capitol Fourth 2011" concert on Monday, July 4, 2011. (Drew Angerer/The Washington Times)

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