[chicagobob]

That's ridiculous. Unless we are in a private place (like your own home, a private club, etc..)

For example, if we are in a public park, and I take your picture even against your explicit wishes, as long as I do not make any commercial profit off of it, I am pretty much free to publish it in any way I want (flicr, etc.).

If I want to sell it or profit from it in some way, you certainly have some rights. But, basically, if you are in a public place you have no privacy rights against someone taking a picture of you and publishing it.