Washington Post: Last February, two communications satellites, the Russian Kosmos-2251 and the US Iridium-33, accidentally smashed into each other. In January 2007, a Chinese antimissile kill vehicle deliberately destroyed Fengyun-1C, a Chinese weather satellite. These and other incidents have strewn space junk in low Earth orbit, worrying the US Department of Defense, which included the threat in its latest US Space Posture Review.