Former Vice President Cheney Reveals Fears of Pacemaker Hack

Cheney's recent disclosure on heart threat fear comes after "Homeland" episode of same plot.
1:58 | 10/20/13

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Transcript for Former Vice President Cheney Reveals Fears of Pacemaker Hack
And a shocking revelation from former vice president dick cheney tonight. He is speaking out now about real fears he had that terrorists could hack into his pacemaker, a fear that he says he watched come to life while watching an episode of "homeland." Tonight, we're also learning something else, that his doctors had audio fear abnother fear about the vice president on 9/11. Here tonight, abc's susan saulny. Reporter: The showtime hit "homeland" ended last season with an assassination plot that seemed farfetched. His pacemaker can be wirelessly accessed. Reporter: The vice president, forced into cardiac arrest when his pacemaker was hacked. I'm killing you. Reporter: In reality, former vice president dick cheney, a man with a long history of heart trouble, was watching that episode. And in an interview with cbs news, cheney revealed how he felt his own heart device left him similarly, shockingly, vulnerable. I was aware of the -- the danger, if you will, that existed. But I found it credible, because I knew that it was an accurate portrayal of what was possible. Reporter: Cheney had the device implanted in 2007. Doctors disabled the wireless feature out of fear that someone, a terrorists, perhaps, could manipulate it and disrupt his heartbeat. I worried that someone could kill you. Reporter: And it was not just terrorists hacking the device his doctors worried about. Six years earlier, it was the stress of the attacks of SEPTEMBER 11th. On that morning, doctors got the results of a test that showed cheney had a potentially fatal surge of potassium in his blood. A fact the vice president didn't know at the time. His doctor telling cbs, as the events of the day unfolded, he thought, quote, the vice president is going to die tonight. But cheney insists his poor health had no impact on his decision-making as vice president. I was as good as I could be, you know, I wasn't worried about it. Reporter: As for his good health today, cheney calls it a miracle. Susan saulny, abc news, washington.

This transcript has been automatically generated and may not be 100% accurate.

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