https://lif.blob.core.windows.net/lif/docs/default-source/default-library/170427-final-trade-blueprintweb.pdf?sfvrsn=0
https://www.euronews.com/2018/09/25/why-is-the-irish-border-issue-so-complex-euronews-answers
http://www.nhsconfed.org/-/media/Confederation/Files/public-access/Securing-the-future.pdf?dl=1