New York correspondent Nathan King, joins us now to update us on the UN's humanitarian effort. Hello Nathan.

Q1. The UN has just set up an operations center at Port-au-Prince airport. How are things going there?

Q2. UN Secretary-General Ban Ki-moon says humanitarian efforts are continuing, although they are in his words, "inevitably slower and more difficult than any of us would wish". We know infrastructure is scant in Haiti What are the major obstacles in this rescue?

Q3. Ban Ki-moon announced on Friday he himself is going to Haiti to assess the situation. Does he have a specific schedule? And what is he expected to do there?