With US President Donald Trump's tariffs on goods coming from Canada due to come into effect on Tuesday, our reporters take a closer look at the border between the two neighbours. Under pressure from the US, Canada recently pledged C$1.3 billion on increasing security along the shared frontier. Even though US government figures show that less than 1 percent of all illegal migrants and fentanyl intercepted in the United States come from Canada, the changes are nonetheless being made. FRANCE 24's Francois Rihouay, Joanne Profeta and Fraser Jackson report.