Homeless children prepare to drink water in a refugee camp near the damaged city of Galle, in southern Sri Lanka, Dec. 30, 2004.
A Thai woman looks for a missing family member among dozens of victim photos.
In the southern Sri Lankan city of Galle, the number of those killed by Sunday's tsunami reaches 23,000. Across much of southern Asia, contaminated drinking water and the lack of sanitary facilities threaten the lives of survivors. Hear NPR's Steve Inskeep and NPR's Jason Beaubien.