"Due to this vacation period and with the proximity of the Olympic Games, demand for air transportation will surely increase," the agency said. Brazilian authorities expect more than 500,000 foreign tourists to visit Rio for the Olympic Games. New, stricter security checks were implemented in Brazilian airports Monday, stalling travellers and delaying flights less than three weeks before Rio de Janeiro hosts the Olympics. Starting at 6am, long, chaotic lines formed at Congonhas regional airport in Brazil's biggest city, Sao Paulo. Within 30mins, more than 700 people were waiting on the building's first and second floors to pass through security checkpoints.

Source: Stuff July 19, 2016 16:52 UTC