Chinese-Russian air co-operation has Norad's 'full attention'

The head of the North American Aerospace Defence Command says Chinese and Russian air co-operation in the Arctic has Norad's "full attention." Those two countries for the first time staged a joint patrol in the Arctic near the coast of Alaska last July.Sign up for breaking news alerts from CTV News, right at your fingertips The information you need to know, sent directly to you: Download the CTV News AppU.S. Gen. Gregory Guillot told The Canadian Press in an interview that it potentially takes d