When Obama! is POTus and the DNC is in full possession of both houses, we’ll get laws passed that protect us all from esplodin space things!!
Yeah, but not nuclear missiles as that kind of defensive weapon is aggressive.
Which political party will do a better job of funding the kind of amateur and professional sky search work that needs to be done to identify new, potentially dangerous asteroids and comets? There has been especially a lack of trained observers for the Southern Hemisphere. See “Impact Earth: Asteroids, Comets and Meteoroids; The Growing Threat”, by Austen Atkinson, 1999, if this issue interests or is of concern to you.