DefconA rare moment of drama came to Defcon when a woman fled the conference after being identified in front of hundreds of other attendees as an undercover television reporter on a crusade to expose collusion between cyber criminals and federal agents.
A psychology professor reckons he has found a mathematical explanation for the "learning spurt" children experience while learning language.
Half of those using stand-alone GPS equipment have been sent down the wrong road thanks to out of date or inaccurate information, though not all of them directly into a river.
Business software users are being offered the chance to trade in used software like they would a second hand car. A Staffordshire-based company is offering reductions on new software if old versions are handed in for resale.