https://www.socialeurope.eu/brexit-shows-us-real-first-world-problems-look-like
http://blogs.lse.ac.uk/brexit/2017/07/06/the-1bn-bung-wont-protect-northern-ireland-from-the-pain-of-a-hard-brexit/
http://www.epc.eu/documents/uploads/pub_7865_realitybites.pdf
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/831199/20190802_Latest_Yellowhammer_Planning_assumptions_CDL.pdf