COVID-19 Passporting

We are in a Catch-22 situation. If we relax the lockdown, we risk reinfecting the population. But we day we are in lockdown our economy crumble one bit more, and is likely to get to a point that it could collapse completely. So, politicians are looking to the turning point of the curve, and then aiming to relax some of the lockdown conditions. But what then? Should each country test at the border? How do we make sure we can safely get people back to…