Volunteers pose for a picture at the Olympic Park in Rio de Janeiro on Thursday as Brazil prepares to host the 2016 Summer Olympics. The Opening Ceremonies are Friday night at Maracana Stadium.
Volunteers pose for a picture at the Olympic Park in Rio de Janeiro on Thursday as Brazil prepares to host the 2016 Summer Olympics. The Opening Ceremonies are Friday night at Maracana Stadium. Natacha Pisarenko AP
Volunteers pose for a picture at the Olympic Park in Rio de Janeiro on Thursday as Brazil prepares to host the 2016 Summer Olympics. The Opening Ceremonies are Friday night at Maracana Stadium. Natacha Pisarenko AP

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