The lights of São Paulo, 1986
When 20 unknown objects showed up in the skies over São Paulo, military aircraft were sent in to see what was going on. However, as they neared these objects, they slowly started to disappear, leaving people confused and worried. One theory is that the objects were actually ejected from the Russian Space Station above that were seen as bright lights upon re-entering the atmosphere of the earth.
Everyone has a damn good camera with them at all times and noone has seen an UFO for years.