The facts reported above suggest that

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The facts reported above suggest that the United States cannot counter the ASBM threat by buying more SM-3s. Were it to try to do so, China could offset these efforts by investing in decoys and other countermeasures; it might even be able to increase ASBM production. However, the United States might counter the ASBM threat by developing hardware and operational concepts that increase the size of the AOUs that China sees and that drive up the chances that Chinese seekers will direct RVs to the wrong targets or fail in other ways.