We referenced already how nanotech could affect things like entertainment. However, this also means it could likely be used to deliver new forms of psychological warfare and propaganda. We’ve already seen how much of an impact social media plays, without really needing to do much to cause problems. People just naturally seem to fear specific things and will always have something to validate that. Facebook among others uses Google ads, which are targeted to what a person is looking up on their own. Now imagine if these issues pushed on social media became more immersive. The impact this will have on the world of public opinion and how social behavior changes will be a huge issue. Nanotechnology will not theoretically but will literally be part of this problem.