Ottawa (AFP) – Canadian Prime Minister Justin Trudeau on Monday was expected to invoke rarely-used emergency powers to bring an end to trucker-led protests against Covid-19 health rules, as police arrested 11 people with a “cache of firearms” blocking a border crossing with the United States in Alberta. Trudeau will invoke the Emergencies Act to give the government extra powers in a national crisis to bring an end to the trucker-led protests now entering a third week, according to public broadcaster CBC. Hundreds of big rigs still clog the streets of the capital Ottawa. And the threat of viole…