BetaNews writes, In July of 2011, Bryan Halfpap waited for his return flight home to Maryland. A network systems security professional working for a natural resource refiner and energy provider, he had just finished up the near week-long events of the security conference DefCon, in Las Vegas. Slumped in his waiting chair, tired and bored, with time to kill he popped open his laptop. The sound and visual confirmations of open wireless networks sounded on his computer. McCarran International Airport, the gateway to the neon colored Pleasure Island that is Las Vegas, had free Wi-Fi. And for whatever reason,...