A performer poses in front of messages expressing prayers and well-wishes for passengers onboard missing Malaysia Airlines (MAS) flight MH370 at Kuala Lumpur International Airport in Sepang on March 17, 2014. An investigation into the pilots of missing Malaysia Airlines flight 370 intensified on March 17 after officials confirmed that the last words spoken from the cockpit came after a key signalling system was manually disabled.     AFP PHOTO/ MANAN VATSYAYANA        (Photo credit should read MANAN VATSYAYANA/AFP/Getty Images)