"The news of survival and new life came as the 72-hour deadline to change the operation from rescue to recovery approached..."

"... even as hundreds more people were feared still trapped amid the rubble."

Rescuers tunneling Friday into the rubble of the eight-story building that collapsed Wednesday discovered another 50 people trapped on what remained of its third floor.... Also Friday, two women who gave birth under the debris were rescued -- along with their infants....

Officials coordinating the operation have said the rescue efforts would end Saturday morning, when heavy equipment will be used to retrieve the remaining bodies and cart away the rubble.... The planned use of heavy equipment ignited protests from the people who crowded near the rescue site, many of them relatives who were showing pictures of the missing to whomever would pay attention and saying they did not believe 72 hours was long enough to wait.