
Accustomed to free access to Smithsonian museums, visitors to the National Air and Space Museum's center in Chantilly can be taken aback by the hefty $15 parking fee.

Three parking attendants have been charged with stealing at least $400,000 in parking fees collected at a parking lot for the Smithsonian Institution's Steven F. Udvar-Hazy Center in Chantilly, prosecutors said Monday.