https://www.brookings.edu/wp-content/uploads/2020/04/fp_20200402_coronavirus_policing.pdf
http://dip21.bundestag.de/dip21/btd/19/072/1907200.pdf
https://ukandeu.ac.uk/explainers/explainer-security-action-for-europe-safe/
http://www.rand.org/content/dam/rand/pubs/research_reports/RR1700/RR1786z1/RAND_RR1786z1.pdf