The content originally appeared on: CNN Seoul, South Korea (CNN)Canadian surveillance planes helping to enforce United Nations sanctions on North Korea are being repeatedly buzzed by Chinese jets that fly so close their crews can see each other, Canada's military has alleged. In some instances the Chinese warplanes have come so close the Canadian aircraft have had to change course to avoid a collision, the Canadian Armed Forces said Wednesday. 'In these interactions, PLAAF (People's Liberation Army Air Force) aircraft […]