There is a new worry for China in the aftermath of this month's huge earthquake.
Chinese soldiers evacuated about 80,000 people near a swelling artificial lake. Officials are worried it could cause a flood.
A massive landslide triggered by the quake made the lake by blocking a river.
And the only thing standing between the 80,000 people living in tents and 34 billion gallons of water are a troop of Chinese soldiers.
They're using heavy earth-moving equipment to keep the natural dams from bursting.
"We are fighting time against potential floods," one Chinese commander said.
Troops are making small rivers to help drain off the excess water in the hopes it will relieve the pressure in the lake.
The death toll from the earthquake has already topped 67,000 and is expected to reach 80,000 or more.
Meanwhile, the Secretary General of the United Nations Ban Ki-Moon is touring the region, drumming up support and aid for the quake victims.
"I have never seen this sort of total destruction by earthquake, natural disaster," he said.
CBN's Operation Blessing has been in the disaster area since the beginning of the relief effort handing out food, water and tents.
Aid workers are scrambling to help as many people as possible before the summer rainy season complicates the relief effort.