Photos of pilot Zaharie Ahmad Shah, top right, and co-pilot Fariq Abdul Hamid, who were onboard the missing Malaysia Airlines Flight 370 are placed at Kechara Forest Retreat in Bentong, outside Kuala Lumpur, Malaysia, Sunday, April 13, 2014. After a week of optimism over four underwater signals believed to be coming from the missing Malaysian plane, the sea has gone quiet and Australia’s leader is warning that the massive search will likely be long. (AP Photo/Lai Seng Sin)