Article Photos: UPDATED Video: Blake Shelton and Miranda Lambert to perform "Over You" in honor of Oklahoma on "The Voice" tonight; Swon Brothers contending on tonight's show 255/519

United State Secretary of Homeland Security Janet Napolitano, left and Oklahoma Governor Mary Fallin arrive for a press conference concerning damage from Monday's tornado on Wednesday, May 22, 2013 at city hall in Moore, Okla. Photo by Steve Sisney, The Oklahoman