SAR is like real estate - the three most important things are location, location, and location. Once you have found the victim with a UAV, you most likely will want to get an actual human, preferably trained, on scene. Your victim will probably need first aid, or at least a fairly thorough assessment. You could send in some supplies, but a priority will be boots at the scene, and the development of more information.

SAR will certainly be profoundly influenced by these developments.
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Geezer in Chief