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NASA Safety Practices Probed

Investigators looking into the space shuttle Columbia accident say NASA workers made safety a top priority, but may have become so comfortable with successful missions that they didn't keep track of small issues that can turn deadly. NPR's Richard Harris reports.

Copyright 2003 NPR

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Award-winning journalist Richard Harris has reported on a wide range of topics in science, medicine and the environment since he joined NPR in 1986. In early 2014, his focus shifted from an emphasis on climate change and the environment to biomedical research.