Barrett Dahl, an autistic Native American from Oklahoma, was visiting Washington, D.C., in October of last year on a school trip. Being in Washington inspired Dahl to wear a sweater featuring the logo of the Washington Redskins. Mr. Dahl says he wore the sweater because it gave him a sense of cultural pride. Not surprisingly, not everyone sees it quite that way -- including a White House advisor named William Mendoza, who confronted Dahl at a Pow Wow, called him a "weetard," spit on him, and then savagely beat him. ====================================== Newsnine.com:Mendoza is the Executive Director of the White House...