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Uploaded by CBS on Apr 28, 2008
An 18-year-old man who was almost completely blind has gained the sense of sight due to gene therapy. Katie Couric comments on the medical breakthrough. (CBSNews.com)
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i like katie couric.
ycq513 3 years ago
cool
mrtvman 3 years ago
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i like katie couric.
ycq513 3 years ago
cool
mrtvman 3 years ago