. >> host: today i'm talking with william burrows about this enjoyable book, "the asteroid threat." i wouldn't characterize it as a story about astronomers, planetary sciences, engineers might someday save the world. well, how would you characterize your book treachery i think you did it very well. i characterize it by saying that my point is that we don't have to be the hapless, hopeless victims of a nature. my friends in nasa and elsewhere in the space committee like to say the dinosaurs had a space program they would still be a. we've got the wherewithal to save ourselves. the book, there was an important point of the book is that it explains that and comes up with a plan. and a plan was not invented by me but it is pretty universally accepted within the community. >> host: so my impression at least you are advocating as spent quite a lot more on this problem, on planetary defense, is that right? >> guest: this. the cold war is over. peace alaska has broken out. what i like to tell people who say it will cost an astronomical amount of money, pardon the pun, to do this, i say wher