When Canadians talk about oil and gas pipelines , the conversation tends to focus on debates around routes, approvals and climate policy. But there’s also whole lot of tech working behind the scenes. Watch to learn about drones , robots and other inspection tools involved on the ground and in the sky. Donald Trump raises the stakes of the trade war with CanadaHow Canada's nuclear race is a lot like the cola wars • Email: dtrainer@postmedia.com