The stabbing of a truck driver at a remote Wyoming rest stop had US Sikhs on edge on Friday amid rising anti-immigrant vitriol against the community and its truck drivers in particular.The Sikh victim was attacked from behind early Sunday while in a restroom at the Bitter Creek rest stop on Interstate 80 midway between Cheyenne and Salt Lake City, according to court documents. He suffered stabs to the neck and chest and over a dozen other cuts but survived.While police say the motive is...