A passenger, John Gardner of Australia, focuses on his Sudoku puzzle, as other passengers sleep onboard...
A passenger, John Gardner of Australia (L), focuses on his Sudoku puzzle, as other passengers sleep onboard Malaysia Airlines Boeing 777-200ER flight MH318 as it cruises towards Beijing March 17, 2014. Malaysia Airlines flight number MH318 replaces the flight number of the missing airplane, MH370, that was retired as a mark of respect to the passengers and crew while the flight route remains unchanged. Reuters photographer Edgar Su boarded the flight in Kuala Lumpur on March 17 and documented the journey to Beijing. This is picture number 20 of 23 in this series. REUTERS/Edgar Su (TRANSPORT)