Security, naturally, will be high around the complex, and around Rio generally.
The arrest Thursday of 10 Brazilians suspected of planning attacks during the Olympics revived memories of the Munich Games in 1972 when an armed Palestinian group took Israeli athletes hostage and killed 11 of them.
Brazil’s Justice Minister Alexandre de Moraes said the suspects were “absolutely amateur,” “disorganised” and had no specific targets.
But recent attacks, such as the one on July 14 in Nice, France that killed 84 people, have prompted officials to bolster their security plans, notably by reinforcing checks and screenings.
From Sunday, some 50,000 police and soldiers are being deployed in Rio to protect sports venues, tourist spots and key transport areas.