https://www.reuters.com/article/us-health-coronavirus-europe-pass-analys/analysis-viable-plan-or-security-theatre-europe-embraces-digital-health-pass-idUSKBN2CD1D5

As Europe races to set up a digital health pass scheme to save the holiday season from the pandemic, technical and political obstacles are showing just how big a challenge the world faces in building such systems, people involved in the effort say.