Miss District of Columbia Sara McCullough (centre) is surrounded by fellow contestants after she was crowned Miss USA 2017 at the Mandalay Bay Events Centre in Las Vegas on Sunday. Photo: AFP Miss District of Columbia Sara McCullough (centre) is surrounded by fellow contestants after she was crowned Miss USA 2017 at the Mandalay Bay Events Centre in Las Vegas on Sunday. Photo: AFP
Miss District of Columbia Sara McCullough (centre) is surrounded by fellow contestants after she was crowned Miss USA 2017 at the Mandalay Bay Events Centre in Las Vegas on Sunday. Photo: AFP

The new Miss USA is a chemist who helps regulate nuclear power plants

Miss District of Columbia Sara McCullough (centre) is surrounded by fellow contestants after she was crowned Miss USA 2017 at the Mandalay Bay Events Centre in Las Vegas on Sunday. Photo: AFP Miss District of Columbia Sara McCullough (centre) is surrounded by fellow contestants after she was crowned Miss USA 2017 at the Mandalay Bay Events Centre in Las Vegas on Sunday. Photo: AFP
Miss District of Columbia Sara McCullough (centre) is surrounded by fellow contestants after she was crowned Miss USA 2017 at the Mandalay Bay Events Centre in Las Vegas on Sunday. Photo: AFP
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