National 911 Memorial - Admission is free (with a $2 visitor pass)... HUH?

The National 911 Twin Towers Memorial http://www.911memorial.org/visit

This just doesn't sound right to me...

Quote :

Admission is free to the 9/11 Memorial. Visitor passes are required.

Reservations made online or by phone carry a $2 nonrefundable service fee per pass. 9/11 family members are exempt from the fee and can find information about reserving passes by clicking here.

Passes for same-day visits are also available on a first-come, first-served basis. These passes are not subject to a service fee, and must be obtained in person at the 9/11 Memorial Preview Site at 20 Vesey St.

Please be reminded that the 9/11 Memorial is a place of remembrance and quiet reflection. We ask that all visitors respect this place made sacred through tragic loss.

Please note that our website reflects actual inventory. If the date and/or time you are looking for is currently unavailable, please check back because additional passes are released regularly.

$2 does not equal $0. Typical government mathematical skills.