PORT-AU-PRINCE (Reuters) - Cash became available and buses started running in Haiti's rubble-clogged capital on Friday but there was still not enough food to feed desperate earthquake survivors who were expected to need emergency aid for months.

"We can do this 24 hours a day for the next six months and we still won't meet the need," said First Sargent Rob Farnsworth, part of a U.S. Army airborne unit handing out food packs at a squalid camp where survivors lived in the open air.