Plan B https://www.gov.uk/government/publications/proposal-for-mandatory-covid-certification-in-a-plan-b-scenario/proposal-for-mandatory-covid-certification-in-a-plan-b-scenario
Executive Order https://www.whitehouse.gov/briefing-room/presidential-actions/2021/09/09/executive-order-on-requiring-coronavirus-disease-2019-vaccination-for-federal-employees/
The Shadows 