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Preview: Free Diving

Name: Preview: Free Diving
Uploaded: 2013-11-27T11:55:47-0500
Duration: 36 s
Description: In a growing extreme sport in which divers reach great depths on one breath, records are being broken and doctors are increasingly surprised by feats never thought possible. Bob Simon reports on Sunday, Dec. 1 at 7:30 p.m. ET and 7 p.m. PT.

In a growing extreme sport in which divers reach great depths on one breath, records are being broken and doctors are increasingly surprised by feats never thought possible. Bob Simon reports on Sunday, Dec. 1 at 7:30 p.m. ET and 7 p.m. PT.