Freedom convoys: legitimate Covid protest or vehicle for darker beliefs?

The blockade of Ottawa has sparked copycat action around the globe, and such disparate demonstrations of grievance may prove hard to shut down

It only took six dozen trucks, and a few hundred protesters to bring Canada's capital to a standstill and close a critical border crossing with the US, throttling the car industry that straddles the line between both countries and relies on a constant flow of trade.

On Saturday, Canadian authorities finally began taking action to clear the Ambassador Bridge into the US, the busiest land crossing in North America, which had been blockaded by just over a dozen trucks and smaller vehicles, and a crowd a few hundred strong.