NASA is trying to suppress a study of airline safety because it could shake the confidence of the flying public. Apparently, in confidence, pilots and air traffic controllers reported many, many, more safety breaches and near misses than show up through official channels. 
http://www.cnn.com/2007/TRAVEL/10/22/nasa.air.safety.ap/index.html
http://www.cnn.com/2007/TRAVEL/10/22/nasa.air.safety.ap/index.html
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I have several telescopes, but none are semi-APO, APO, or in anyway valuable.
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