How far are parents willing to go to give their children the best chance at life? A new genetic test promises to reduce the risk of diseases like Type 1 diabetes in embryos. But it could also be used to optimize traits, like intelligence. VICE News explores the promises and perils of this technology. Correction: A previous version of this video stated inaccurately that Down's Syndrome was caused by a mutation in a single gene. It is a genetic disorder caused when abnormal cell division results in an extra full or partial copy of chromosome 21. Help keep VICE News’ fearless reporting free for millions by making a one-time or ongoing contribution here. - https://vice.com/contribute Subscribe to VICE News here: http://bit.ly/Subscribe-to-VICE-News Check out VICE News for more: http://vicenews.com/ Follow VICE News here: TikTok: https://www.tiktok.com/@vicenews?lang=en Facebook: https://www.facebook.com/vicenews Twitter: https://twitter.com/vicenews Instagram: http://instagram.com/vicenews More videos from the VICE network: https://www.fb.com/vicevideo Follow VICE World News here: TikTok: https://www.tiktok.com/@viceworldnews?lang=en Twitch: https://www.twitch.tv/vice Facebook: https://www.facebook.com/viceworldnews Twitter: https://twitter.com/VICEWorldNews Instagram: https://www.instagram.com/viceworldnews/ #VICENews #News