Tech reporter says a Facebook exec once warned that Mark Zuckerberg had panic attacks and could faint years before his famously sweaty interview

• Kara Swisher said a Facebook exec once warned her Mark Zuckerberg might have a panic attack or faint onstage.
• Swisher interviewed a very sweaty and awkward Zuckerberg on stage in 2010.
• Zuckerberg's public-speaking skills and image have changed drastically over the years.

It's been almost 15 years since Mark Zuckerberg famously gave a very sweaty interview where he was asked some tough questions onstage.