John Chen didn't set out to be The Turnaround Guy. He just played to his strengths. He’s had plenty to fix at BlackBerry, the iconic Canadian tech company he took over as executive chairman and CEO in 2013. BlackBerry’s CEO & Executive Chairman says he’s driven to do what others think isn’t possible. He spoke at the last RBC Disruptors about trade tensions between the U.S. and China, the future of mobile devices and how artificial intelligence is changing cybersecurity.