[url=http://www.foreignpolicy.com/articles/2014/04/21/waste_of_space_space_junk_gravity_us_china]135 million pieces of junk are orbiting Earth at 18,000 mph -- and U.S. space dominance is in danger of being ripped to shreds.[/url] Interesting article on how space debris can cripple space assets that are important for government and military purposes. The US has the most to lose, by far, from not tackling the problem, and China has quickly advanced its own ASAT technology-- incidentally creating even more debris.