If the U.S. invaded, could Canada defend its sovereignty?

A Globe and Mail reporter reveals that, for the first time in a century, the Canadian military has modeled a hypothetical U.S. invasion of Canada.At a tense public meeting, a group of New Brunswick residents expressed serious opposition to a planned new gas plant. A vice-president of the utility tells us public support does matter -- but so does keeping the lights on. A reporter in Chile tells us how fire overcame one coastal community in the blink of an eye -- and shocked locals are now wondering if this is the new normal.The tale of a small, strangely popular boulder in British Columbia called "Portable" -- which is finally heading back to where it belongs, months after it went missing. And.... A new scientific paper introduces the world to a brilliant cow by the name of Veronika -- who uses a broom to sweep away her itches, in an incredible example of bovine tool use. As It Happens, the Tuesday Edition. Radio that assumes she just started from scratch.