Modeling movement and probability of area: Although this is a research area dear to my heart, I think that it will probably only have impact in the long term. Three things must be addressed before it can have high impact. First, UAV's must be perceived as a useful tool by the search and rescue community. Second, we've got to get the models right so that they really help rather than just provide pretty pictures. Third, they have to complement emerging Geographic Information Systems intended to support the incident commander or the ground searcher.