[kegler4]

"A baseball stadium is public property, and there is nothing wrong with fans posting signs. In fact, it's almost expected for fans to do so. Apples and oranges."

Sorry, but in fact most stadiums DO have rules regulating signs. We were just at Yankee Stadium and you can't just bring in any old sign you want. I don't remember the exact restrictions but if they see you with sign they don't like, the sign goes or you do.

[=Intervention=]

Let me be more specific, then.

I understand that there are many restrictions on signs -- for size, for libel, and so forth. However, these people were forbidden to display their sign based on purely a viewpoint expressed civilly. Now unless the Philidelphia stadium has such by-laws in place already, it's censorship (the state forbidding certain viewpoints from being expressed with no public safety or otherwise historic rationale). If the stadium DOES have such by-laws in place, then those laws should be the focus of discussion.