REYKJAVIK, ICELAND — Canada is monitoring the situation in Russia after a short-lived armed rebellion by a mercenary leader this weekend, Prime Minister Justin said Monday, adding a cautious approach is needed to avoid fuelling Russian propaganda. A revolt staged Saturday by Yevgeny Prigozhin, leader of the mercenary paramilitary organization known as the Wagner Group, loomed large over a two-day gathering of Nordic leaders in Iceland, which Trudeau attended as a guest. The events in Russia pushed security to the top of the agenda, which was organized around the theme of "societal resilience" at the site of a 1973 volcanic...