Mending fences in space: Tracking the high speed danger of space debris

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The Air Force wants to rebuild a "fence" around Earth to keep out the riffraff.http://feeds.feedburner.com/~ff/rss/cnn_us?d=yIl2AUoC8zA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=7aUK3Mt7dqM:_3n9ZUMTxgQ:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/rss/cnn_us?d=7Q72WNTAKBA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=7aUK3Mt7dqM:_3n9ZUMTxgQ:7Q72WNTAKBA) http://feeds.feedburner.com/~ff/rss/cnn_us?i=7aUK3Mt7dqM:_3n9ZUMTxgQ:V_sGLiPBpWU</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=7aUK3Mt7dqM:_3n9ZUMTxgQ:V_sGLiPBpWU) http://feeds.feedburner.com/~ff/rss/cnn_us?d=qj6IDK7rITs</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=7aUK3Mt7dqM:_3n9ZUMTxgQ:qj6IDK7rITs) http://feeds.feedburner.com/~ff/rss/cnn_us?i=7aUK3Mt7dqM:_3n9ZUMTxgQ:gIN9vFwOqvQ</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=7aUK3Mt7dqM:_3n9ZUMTxgQ:gIN9vFwOqvQ)
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