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Dozens topple off malfunctioning DC escalator

February 27, 2011 12:00:00 AM PST
Dozens of people tumbled like dominoes off a malfunctioning escalator in Washington, D.C. and it was caught on video.

A surveillance camera was rolling at a D.C. Metro station as people left the Rally to Restore Sanity event at the National Mall last fall.

Suddenly, the escalator sped up, and sent people tumbling over each other and onto the ground.

Several people were injured, and one person was seriously injured.

Investigators said the escalator's brake system failed.

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