Ermm, Power failure? I dont think so! People I know there said it was cos of the Elevator incident! A faulty elevator was behind the shutdown of the observation deck on the world's tallest tower that effectively closed the half-mile-high Burj Khalifa to the public!

http://www.google.com/hostednews/canadianpress/article/ALeqM5g5VjcCJJwhu...