UN humanitarian chief John Holmes said at UN headquarters in New York that it's believed that 3 million people are affected, with 2 million of those needing food for at least six months.

Between the UN World Food Program and deliveries by the Red Cross and other private aid groups, about a half-million Haitians should have been reached with "reasonable quantities of food," he said. "That's still very far short of what's needed."

At the hillside tent camp, set up on a golf course where an 82nd Airborne unit has its base, the lines of hungry and thirsty stretched downhill and out of sight as paratroopers handed out bottled water and ready-to-eat meals as fast as helicopters brought them in.

In one sign of normalcy, women carried baskets of cauliflower, sweet potatoes and sugar cane into the city from farms in the hills. Some food and water was on sale in Port-au-Prince's markets, but prices had skyrocketed.

"We need money, man. I don't have enough to buy anything," said Ricardo, the newly homeless man who was seeking work and food, as well as a tent, at the golf course encampment.

Looking over the food lines there, 82nd Airborne Capt. John Hartsock said, "This is the first time I've seen it this orderly."

President Rene Preval stressed the relative quiet prevailing over much of Port-au-Prince. People understand, he told French radio, "it is through calmness (and) an even more organized solidarity that we're going to get out of this."

Concerns still persisted that looting and violence that flared up in pockets in recent days could spread. In downtown Port-au-Prince on Wednesday, dozens of men, women and children clambered over the rubble of a department store, hauling off clocks, lamps, towels, even women's hair extensions. Police stood nearby, not intervening.

The European Commission's report described the security situation as "deteriorating."

US troops — some 11,500 soldiers, Marines and sailors onshore and offshore as of Wednesday and expected to total 16,000 by the weekend — were seen slowly ratcheting up control over parts of the city. Marine reinforcements were to help escort aid deliveries. One unescorted truck was seen screeching off Wednesday when a crowd grew unruly as its tents were being distributed.

The UN was adding 2,000 peacekeepers to the 7,000 already in Haiti, and 1,500 more police to the 2,100-member international force. That plan suffered a setback when Haiti — with historically tense relations with the neighboring Dominican Republic — rejected a Dominican offer of an 800-strong battalion, according to a Western diplomat at the UN, speaking on condition of anonymity in the absence of a public announcement.

Other small signs of normalcy rippled over Port-au-Prince: Street vendors had found flowers to sell to those wishing to honor their dead. One or two money transfer agencies reopened to receive wired money from Haitians abroad. Officials said banks would open later this week.

But Wednesday's aftershock, the stench of the lingering dead, and the tears and upstretched hands of helpless Haitians made clear that the country's tragedy will continue for months and years as this poor land counts and remembers its losses.

After the tremor's dust settled Wednesday, street merchant Marie-Jose Decosse walked past the partly collapsed St. Francois de Salles Hospital in Carrefour Feuille, one of the worst-hit sections of town. She raised her arms to the sky, and spoke for millions.

"Lord have mercy, for we are sinners!" she shouted. "Please have mercy on Haiti."