Well Hump,

Glad you had a nice time. "what is the difference?" Well they are providing a valuable service to the sailors and tourist who visit the city by taking a photo you are violating their privacy.

Because of their services, Amsterdam has one of the lowest rates of rapes and domestic assault in the world. If it was legal in the US there maybe would be fewer women in shelters. Remember they are getting state sponsored health care whether at the dam or at the airport.

That's the difference.

Loco