Federal Hackers Not Welcome

Federal hackers can leave their black T-shirts folded and their red hair gel in the medicine cabinet. They're not welcome at this year's annual DefCon hacking convention. In the aftermath of the Edward Snowden surveillance revelations, the conference founder has politely asked federal attendees to take a year off. Jeff Moss says the other hackers need time to process what they now know about the National Security Agency. DefCon attracts more than 15,000 code jockeys to Las Vegas each year. This year's conference starts Aug. 2.