Forget the fake news of yesterday. It's about to get worse, much worse so just capturing someone on video won't be enough. The old bit of pics or it didn't happen has been rendered absolutely obsolete. Yeah, technology is always going to make our lives better.. No, just kidding. It won't.
Read it and weep folks. You won't know who is saying what anymore. http://www.vanityfair.com/news/2017/01/fake-news-technology
Faces and voices can all be manipulated to the point where the fake is nearly impossible to distinguish from the real stuff and with this kind of power in the hands of known liars there's no telling where it may lead.
Police need a confession from someone completely innocent? No problem. Rubber hoses not required. Politicians saying things they shouldn't? No problem. A president declaring war against friends? Easy peezy.