Government severely misjudged strength of Oroville emergency spillway, sparking a crisis

Katy Perry shows her patriotism

Katy Perry performs onstage during 'VH1 Divas Salute the Troops' presented by the USO at the MCAS Miramar on December 3, 2010 in Miramar, California.
Michael Caulfield/Getty Images for VH1
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