https://www.conservativehome.com/thecolumnists/2018/02/alex-morton-its-time-to-turn-the-department-for-international-development-into-a-department-for-humanitarian-relief.html
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/695321/An_inspection_of_exit_checks.pdf
https://www.euronews.com/2018/09/25/why-is-the-irish-border-issue-so-complex-euronews-answers