DC's July 4 fireworks could shut down parts of the Potomac River
DC's July 4 fireworks could shut down parts of the Potomac River

DC's July 4 fireworks could shut down parts of the Potomac River

Tight security for what's expected to be a record-breaking 4th of July fireworks display in Washington, D.C., could shut down parts of the Potomac River, leaving boat rental companies concerned.

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