What lessons can Canada teach America about deadly gun violence?

Canadian law requires citizens to undergo mandatory training before obtaining a gun license.

(CNN)As Americans across the country celebrated the nation's independence and its freedom from the apparent worst of the coronavirus pandemic, an epidemic of a different kind remained on familiar display: the surge in shootings.

It was an incredibly violent weekend across the country.
    According to the Gun Violence Archive, there were at least 150 people killed by gun violence in more than 400 shooting incidents in America from Friday to Monday.
      As lawmakers, activists, and crime experts look for solutions to the recent wave of mass shootings across the United States, some are looking to America's neighbor to the north for possible answers.

      So much safer

      America is a nation saturated by guns, with more firearms than people. According to the Small Arms Research project, there are 121 firearms for every 100 residents.
        Nowhere else compares. But Canada is one of the western nations that comes closest, with an estimated 35 guns per 100 residents.
        Still, mass shootings in Canada are so rare, public safety authorities tell us they don't even keep an official list.
        For a decade, there were about five murders per year in Canada with three or more victims, according to the country's national statistics agency.
        But, with so many guns, why does Canada appear to be so much safer than the United States when it comes to gun violence?

        Training and tripwires

        For one, Canadian law requires citizens to undergo robust background checks and mandatory training before obtaining a gun license.
        And unlike some training programs, students a