If you're a tour guide in the nation's capital, new regulations are in place to ensure you know L'Enfant Plaza from Logan Circle.
But the operators of a Segway tour -- Segs in the City -- say the new regulations are an unconstitutional infringement on free speech.
Baltimore residents Bill Main and Tonia Edwards, who own Segs in the City, filed a federal lawsuit Thursday asking a judge to invalidate the new regulations.
Under the new requirements, tour guides must pass a 100-question, multiple choice exam that tests their knowledge of the city's architecture and history, among other things.
The Institute for Justice, a Virginia-based legal group representing the tour guides, says the government cannot block people from giving tours and talking about the city's history simply because they don't hold a license.
