2 Milllion People At Obama's Inauguration

I was wondering, with 2 million over people in Washington, the logistics, security, transportation was organized on a large scale.

How about toilets, where would 2 million people go to relieve themselves?

Real portable toilet, diapers, Plastic bottles or modern portable toilets


Barack Obama inauguration: Two million turn out to greet their new president
http://www.telegraph.co.uk/news/worldnews/northamerica/usa/barackobama/4300880/Barack-Obama-inauguration-Two-million-turn-out-to-greet-their-new-president.html
Two million people turned out to witness the inauguration of Barack Obama in Washington DC.
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Two million people covered almost every square foot of Washington's two-mile grass runway from the Capitol to the Lincoln Memorial to watch the inauguration of Barack Obama...

Tens of thousands more lined Pennsylvania Avenue, where an armoured black limousine later took the first black American president to his new home – a house built by slaves. Millions, possibly billions, watched on television around the world, but it was the extraordinary numbers who braved the numbing chill of a harsh Washington winter that really spoke best of the Obama appeal.
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