Overall, the group found the U.S. needs more tools to track space rocks, and that greater international cooperation is necessary. Specifically, the report outlines several goals, including increasing the ability both in the U.S. and in other countries to more rapidly detect [Near-Earth Objects], track their movements and characterize the objects more completely. It also says more research is needed to study how best to deflect and disrupt a space rock that might be on a collision course with Earth. Furthermore, the strategy calls for better and more integrated modeling of NEO trajectories to reduce uncertainties of their orbits and possible impact effects.

If indeed there is a NEO strike, the strategy also seeks to develop coherent national and international emergency procedures for different impact scenarios, be it an object hitting deep ocean, a coastal region or a major landmass. We must be prepared to respond as well as recover from such a blow in an orderly and timely manner, the report finds. [Scientific American]