Defcon's hotel business-center won't print from links or USBs

Defcon, the hacker and security conference, is coming to Caesar's Palace this weekend (I'm speaking!), and that means that the hotel needs to start thinking hard about the security of its systems, likely to be targeted both in earnest (by people who want to spy on attendees) and in jest (by attendees who want to prank their fellows by announcing that they've compromised everyone's systems). (more")