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california physicists are proposing, building a laser array in space. depending how big you build it, it could nudge a asteroid away or build a bigger version it could vaporize an asteroid. martha: is it worth it to build something like that? a, would it work and b, are these things so random and happen infrequently it would be a huge expense and not necessarily protection us? honestly a death star is kind of getting ahead of ourselves here. it makes great headlines but the really scary thing is there is lot out there and we don t even know where it is. like that russian meteor, if we had slightly better telescope network, we could have given people six hours or a day s worth of warning. it wouldn t have stopped the damage but could have saved a lot of injuries. martha: maybe that is the way to go. the amount of money we spend just look something unbelievably small. let me tell you amazing statistic. we spendfy times as much on free poseage for congress as we do searching for aster