Mile Long Security Check Line @ Midway Airport

(12/4/2014) Mile long of airport security check line? No kidding. It is hard to believe that Midway Airport made such a big mistake at the busiest day of air travel. But seeing is believing. What is the cause? The airport says they opened the security check too late and did not have enough staff working for security checking.

Visit NBCNews.com for breaking news, world news, and news about the economy