A new survey found 21% of millennials think vaccines cause autism. This isn't just wrong, it's dangerous. Vox's Dylan Matthews explains why vaccines are so important in 2 minutes. For more on the survey: http://www.vox.com/2015/1/31/7954725/vaccines-autism-young-adults Subscribe to our channel! http://www.youtube.com/subscription_center?add_user=voxdotcom Vox.com is news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out http://www.vox.com to get up to speed on everything from Kurdistan to the Kim Kardashian app. Check out our full video catalog: youtube.com/voxdotcom/videos Follow Vox on Twitter: https://twitter.com/voxdotcom Or on Facebook: https://www.facebook.com/Vox