Jack, a mathematical model that presupposes that no help is in place or coming fast to Monrovia and there is no response at all within the Liberian community itself is worse than useless. My respect for pronouncements from Yale University has dropped considerably.

From what I can see, the airport has been repaired. US troops have been building treatment centers and developing mobile labs. About 300 healthcare workers from Cuba have arrived. Both military and civilian training for healthcare workers is progressing rapidly. A full service hospital to treat healthcare workers who become infected will be finished within a month. The behavior of the people of Monrovia has changed to recognize diseased persons and isolate their contacts.

The response was delayed, that's true. But there IS a response and hopefully it will make a huge difference soon.