But if you can hold it for a year or so, no problem

City to 9/11 Memorial Visitors: When You Gotta Go, Too Bad - WPIX

NEW YORK (WPIX)—Nowhere else in New York City is timing more crucial than at the completion of the National September 11th memorial. And, in a way, nothing else is more crucial - when it comes to timing – than finding a bathroom when you need to go. But when the almost-10-years-in-the-making 8-acre memorial site opens in time for the 10th anniversary of the terrorist attacks, there won't be any bathrooms....

When the seven-story museum opens in 2012, it will have bathrooms.