When a Chinese scientist announced he had modified the DNA of two babies to make them HIV resistant – the scientific world reacted with shock and disdain. But what is gene editing? And how is this new and powerful technology being used?
For more from ABC News, click here: http://www.abc.net.au/news/
Subscribe to us on YouTube: http://ab.co/1svxLVE
You can also like us on Facebook: http://facebook.com/abcnews.au
Or follow us on Instagram: http://instagram.com/abcnews_au
Or even on Twitter: http://twitter.com/abcnews