Planet Money has an interesting history lesson on the Luddites. It appears we are doomed to repeat this history and if CGP Grey is correct, we have a lot to worry about. His Humans Need Not Apply video is below also.
http://www.npr.org/blogs/money/2015/05/06/404701816/episode-621-when-luddites-attack
[youtube=https://youtu.be/7Pq-S557XQU]
image: morguefile.com