Messages for passengers on board the missing AirAsia flight 8501 are placed on a board at Changi International Airport, Tuesday, Dec. 30, 2014 in Singapore. Searchers combing the Java Sea to find and recover debris and bodies from the AirAsia jet that crashed there have the advantage of working in much shallower waters than those found in the open ocean, but also face challenges that include monsoons, murkiness and trash. (AP Photo/Wong Maye-E)
{}