[PvK]

Fortunately, developing an anti-asteroid system probably isn't going to prevent dealing with other problems at the same time. The course of action there is pretty clear - continue to research, develop, and deploy a solution. It's a risk, but the course of action is clear, and even looks like bozo politicians can be made to understand and agree to do it. "Oh, so I get to be seen by the voters as a movie-star-like person building a ray gun to save the Earth from destruction? Cool - where do I sign?"

Unfortunately, other problems (environmental and political) seem more certain, more urgent, and less easy to solve. Even with intellectual solutions, getting populations and corrupt/foolish/preoccupied governments to act on the solutions can be really hard. Gotta try though. Keep thinking and expressing intelligent opinions to other people, and to goverment and media.

PvK