It’s free, so do they have the right to censor it?Officials have blocked access to content they deem provocative on the airport’s free Wi-Fi service.The Denver Post points out that some of those questionable sites include, Vanity Fair, the gossip column perezhilton.com, the hipster-geek site boingboing.net, and photos from the Sports Illustrated swimsuit issue. Of course, hard copies of the Sports Illustrated swimsuit issue are displayed on newsstands in the airport along with issues of Penthouse and Hustler.But