Fascinating. I agree Sound Transit should reverse course and accept the ads. The Port of Seattle, which runs the airport, long ago created a Concerted Labor Activities advertising guideline that explicitly allows for just this kind of thing. Sound Transit does not. And since the Port (like every airport operator in the country I think) sold their advertising authority to Clear Channel, that company's executives certainly are not subject to the kind of political sensitivities that ping around on Sound Transit's board when it comes to advertisers who have dollars to spend.