![Video: Why Colombia’s $4BN Dam Failed [14:08]](/img/ff037873bfd4fde0973c86c049703cad764f1808a0ac7c70d88f9e97bebc8afe)
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Video: Why Colombia’s $4BN Dam Failed [14:08]
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Video: Why Colombia’s $4BN Dam Failed [14:08] (from youtube.com)