Improving neighbourly relations: US-Mexico border authorities close the door

Donald Trump has branded Mexico a narco-state, accusing it of failing to control its border. The US president has escalated his rhetoric, issuing stark accusations and threatening unilateral military action, claiming drug trafficking and illegal immigration still pose a significant threat to the United States. But what’s the reality on the ground? Our correspondents, Laurence Cuvillier and Quentin Duval, report from the Mexican side of the border.