Bob Zubrin on Obama's destruction of U.S. planetary exploration

Bob Zubrin, president of the Mars Society, has a great piece on National Review Online about Obama's move to curtail planetary exploration programs. He even goes into some speculation about why he is doing it and I think it is right on the mark:

"Thus, in order to accept the constraints on human aspirations demanded by Holdren, Ehrlich, and like-minded thinkers (whether rationalized by alleged limits to available resources in the 1970s, or by the putative threat of global warming due to excessive use of natural resources today), [Obama believes] people must be convinced that the future is closed. The issue is not that resources from space might disrupt the would-be regulator’s rationing schemes. Rather it is that the idea of an open future with unlimited resources and possibilities undermines the walls of the mental prison that the would-be wardens of mankind seek to construct."