Canadian librarian is not permitted to cross the border

Anna writes “We librarians are a dangerous lot — especially those Canadian librarians!
Art Rhyno intented to visit the U.S. today to give a workshop on using XML in libraries, similar to one he had given in California three weeks ago. Unfortunately, the border guards found him suspicious and denied entry. “So 4 hours after leaving my home, I am back in Canada, with nothing to show but a flagged status in the security systems of two countries and a cancelled airline ticket.”

I sure feel safer. Don’t you?”

Update: 02/13 11:35 EST by B:Art has posted an interesting follow up in the comments below.