WASHINGTON (CNN) -- A 32-year-old woman wielding a machete was arrested Sunday outside the White House, the Secret Service said. Spokeswoman Kim Bruce said Ashwak Saleh was taken into custody and charged with possession of a prohibited weapon after she displayed a 13-inch machete on the sidewalk outside the White House. Saleh was arrested at 2:20 p.m. and taken to Washington Metro Police Department 3rd district for processing. Witnesses said Saleh was sitting on the sidewalk when she pulled the machete out of a leather sleeve and began sharpening it on the edge of the sidewalk. The witnesses said passersby...