As a NASA aerospace engineer I was trained to look for warning signs of possible failure. We had indicating signs of failure before the Challenger and Columbia disasters…they were there but we ignored them. Notice I wrote "disasters" not accidents. Both were disasters because they were preventable and even survivable…they were not accidents. Instead of admitting that the space shuttle disasters were human failures, NASA management concluded that the space shuttle had to be decommissioned and that the shuttle funding be used to develop a safer system for getting humans into space. However, NASA management is once again ignoring the warning signs that there shuttle replacement is not.
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