Panama Canal: What the 1999 deal stipulates and how the waterway is run today

During his inaugural speech, US President Donald Trump threatened to "take back" the Panama Canal. Built by the US in the early 20th century, the waterway is a key maritime trade route. The US relinquished control of it back in 1999 in a deal that obliged the operator to charge ships fairly. We take a closer look at the economy behind the canal. Plus, Trump is promising to significantly change US trade policy through tariffs. But do these taxes protect domestic jobs and workers?