Spain’s Canary Islands are facing renewed pressure from migrant arrivals, with local authorities declaring a state of emergency. Against this backdrop, a viral video claims to show thousands of boats in Mauritania amassing at the port, that users said was "ready to set sail" to carry migrants to the archipelago. But the satellite images are misleading: they show a traditional fishing port, not a fleet of migrant vessels. Vedika Bahl explains in Truth or Fake.