"It's going to be hard. A lot of resources have been devoted to Haiti, and there has been a shrinkage of the capacity to respond. The nongovernmental organizations have been tapped out and stretched by the tough economy," said Thomas Tighe, president and chief executive of Direct Relief International, a privately funded humanitarian health organization based in Goleta, Calif. "I'm not sure if there was another Haiti next week that people could do the same," he said. "But our assumption is that if there is a precise need and compelling case, people will step up."