Five people have died after powerful gusts of wind in Brazil brought chaos to Rio de Janeiro and parts of Sao Paulo state, cutting power and bringing public transport to a standstill.Residents of Rio de Janeiro were taken by surprise when winds of up to 100km/h hit just before rush hour, felling dozens of trees and leaving thousands stranded as the city’s three subway queues ground to a halt.The fire department said in a statement that two people had died when a wall collapsed in the city of...