we saw secretary of state john kerriment come out unusually with slides saying that every country inhe world can provide something. if you don't have the money, provide a helicopter, a plane, send doctors, or equipment, so they are trying to rally the globe to the fight. so far they say almost $700 million has been pledged, but not all of that money has actually shown up. even if the that money does come through, that still leaves a $300 million shortfall to buy the equipment, to build the hospitals, and evacuate the health-care workers if they getting sick. this week is an attempt to try to get countries across the globe to step up and believe that what happens in west africa matters to them. >> patty are we getting a sense of a time line of what needs to happen before this disease will be officially out of control or uncontrollable? >> reporter: they are basically saying it is a matter of weeks, and it could spread more rapidly than anybody has faced up to this point. it has been weeks since the u.s. president said we're going to have a military response. he said up to 4,000 troops