When we have half a million, you can't take the Metro, and you walk home, and it's not 15 degrees.

CNN: Inauguration may be traffic, security nightmare

In order to get in: walk or take public transport, such as the metro area's subway system.

CNN: Inauguration may be traffic, security nightmare

The Unity Walk, which was hosted by eight radio stations in metro Washington, D.

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"If you're within one to two miles of the festivities, just walk, " said Lisa Forestein, a spokesperson for Washington's Metro subway system.

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