I would refer to two cases.
First, I would point to what Patrick Lagacé, himself, said a few weeks ago: it may be appropriate in certain situations to spy on or wiretap a journalist. In other words, it comes down to pure common sense.
As a former journalist, the example I always give is this. If, on June 5, 1944, I had found out that something was going to happen the next day in Normandy, I never would have reported on it, because I would've had the sense not to.