From afar this structure may look like a huge birthday cake without candles, but in reality it is a protective wrap that covers a fuel cell tank used to store fuel for the C-130 aircraft at the Niagara Falls Air Reserve Station, N.Y. on May 23, 2012. The tank now empty will be repainted from both the interior and exterior surfaces for corrosion control. The project is expected to be completed in late July when a secondary fuel tank will go through the same process. (U.S. Air Force photo by Peter Borys)