Jay Manifold says we’re still being too complacent. This is one of the stronger arguments for becoming a true space-faring civilization as soon as possible, to my mind.

He also links to this collection of textbook disclaimers, which seems to be pretty popular on blogdex right now:

This textbook suggests that the earth is spherical. The shape of the earth is a controversial topic, and not all people accept the theory. This material should be approached with an open mind, studied carefully, and critically considered.