First, young people have long been criticized for not being civically engaged enough. People argue that millennials vote less or prefer to watch satirical news programs like "The Daily Show" over actual news.
But a new book called By Any Media Necessary: The New Youth Activism argues that youth political engagement hasn't necessarily declined, it has just changed. Young people with a political cause have used Facebook, Twitter, viral videos, memes, and pop culture to talk about issues that matter to them -- from the Invisible Children campaign to the Harry Potter Alliance which fights for human rights in the name of fantasy written by J.K. Rowling.