‘Safe’, ( is so very much relative. He has to think about it for a moment. ) Yes and no. I’ll say, cynically, that communication innovations are in fact a part of the machines of war, so. There’s a vested interest in everyone being able to get information quickly.

If sending crystals were a widespread technology here that both Riftwatch and Tevinter used, but they relied on the same vanes, we’d presumably still want them up and working for our own purposes. Taking them down to sabotage both the enemy and yourself would mean cutting off your nose to spite your face.