There are times when nations must do unpopular and painful things — and those are the times when a country needs a “leader”. Ours has gone missing in action. Worse, President Trump is actually subverting leadership. The resulting vacuum of power feeds confusion and chaos, as mayors, governors, members of Congress, doctors and scientists all strive to fill the vacuum. ...

The way the Covid-19 crisis ends is with vaccines — not a vaccine. More than one horse can win this race. Some of us might end up getting a shot of a more traditional vaccine, which uses parts of an inactivated virus to stimulate immunity. Others might get vaccines based on emerging technologies that use synthetic versions of the virus’s ...

It’s easy to ban a product that’s difficult to get your hands on anyway. That’s why Britain’s possible move to impose a stricter ban on Huawei Technologies Co seems opportunistic, even if it does now make sense. It’s taking advantage of harsher US sanctions on the Chinese telecoms-equipment giant to consider extending the UK’s halfway measures unveiled with great fanfare ...