As Dr. Joseph Jockel and I suggested, if the U.S. does go forward with some sort of east coast system, this provides the opportunity for Canada to jump in and say, “Well, we're willing to participate in this system, either by putting sensors in Canada, or by helping financially and with staffing on those systems.” It's a non-technological opening, but if the U.S. were to move forward with an east coast system, as former secretary Hagel has suggested, this would then provide the opportunity for Canada to step in and contribute. It really depends on what they're going to do.
On April 21st, 2016. See this statement in context.