https://mobile.twitter.com/plusone_inc/status/812825199452114944
 
https://streamable.com/nv7m
 
https://www.sciencedaily.com/releases/2016/12/161223115757.htm
 
http://www.telegraph.co.uk/news/politics/12063052/Mass-migration-driving-down-wages-offered-to-British-jobseekers.html