TOPSHOTS The "Silver Bullet" airstream trailer (C) carrying US Secretary of Defense Chuck Hagel is pictured inside a US Air Force C-17 aircraft transporting him and his staff from Kabul to Ramstein Airbase in Germany on March 11, 2013. US Defense Secretary Chuck Hagel's first trip to Afghanistan was overshadowed on March 10 by a contentious speech by Afghan President Hamid Karzai and a security scare that forced their press conference to be cancelled. AFP PHOTO/POOL/Jason Reed