But frustration among Haitians is growing. Authorities are warning that looting and violence could spread.
Some prayers were answered in Haiti where the scope of the disaster matches the human suffering.
This six year old boy was pulled overnight from a home that collapsed after Tuesday's 7.0 earthquake by South Florida rescue teams.
In another part of the city, another miracle, a woman survived 126 hours under rubble, before she was rescued.
"It's a very wonderful night because we've worked almost 26 hours straight for those two survivors. Immediately now we need to start working some more for additional survivors," said Charles MacDermott, U.S. Rescue Team.
But for every rescue story, time is running out for the countless other victims. Former President Bill Clinton travels today to this quake-stricken nation with water, food, and medical supplies. About 2200 Marines are also arriving to help with distribution. But the aid has been slow to get to those who need it.
"The use of helicopters in the congested areas where most of the Haitian people are in need, you're not going to be landing helicopters in those areas - we have to pick sites as close as we can," said Lt. Gen. Ken Keen, US Southern Command.
Medical attention is as rare as clean water and food. A hospital 75 miles from Port au Prince has surgeons standing by to save lives, but no patients because the massive quake hampered transportation.
"My surgeons are just sitting here on their hands, waiting for patients, while they're dying in Port au Prince," said Tim Traynor, Medical Volunteer in Milot, Haiti.
The Pan American Health Organization estimates 300,000 people to be displaced, and puts the death toll between 50,000 and 100,000 people.