Right - there are few assets available that can go anywhere in the world in unstable situations and be self-sufficient long enough for re-supply. There's no shortage of volunteers to go, but few who can be on the ground and fully operational inside 48 hours at little risk until re-supply.

The Navy has two big hospital ships that would be great here but I don't know ho many weeks lead time they need.

The cause of the FAA directive is probably not so much fuel as it is getting supplies off the airfield in Haiti. The Haitian government is not very well organized at the best of times and getting supplies distributed is probably the bottleneck, not getting them to Haiti.

Given the history and state of things the capabilities of an Amphibious Assault Group would be handy for putting large amounts of supplies ashore at many sites. I don't know where those assets are kept or how long it would take to deploy them this way, but it's probably the group most able to move thousands of tons of supplies to many minimally-prepared sites.