VIDEO — Mark Zuckerberg on ALS Ice Bucket Challenge: 'That Was Really Cold'

You’ve probably seen videos making the round on your News Feed, with people getting soaked with a bucket of ice water to raise awareness for Amyotrophic lateral sclerosis (ALS) as part of the ALS Ice Bucket Challenge. Recently, Facebook Co-Founder and Chief Executive Officer Mark Zuckerberg responded to a challenge by New Jersey Gov. Chris Christie, and took the plunge.

Zuckerberg offered up the challenge to Bill Gates, Facebook Chief Operating Officer Sheryl Sandberg and Netflix CEO Reed Hastings.

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