The joyous moment the power came back on at the airport in Atlanta was shared on social media. Stranded travelers can be heard cheering. In the wake of a fire that crippled the world's busiest airport, there are now fears that the crisis could be a blueprint for terrorists. "Atlanta Airport Blackout Sends Message To Terrorists: America Is Unprepared," said The Daily Beast website. A CBS News travel editor says the power outage could still have a big impact on holiday travel this week.