By THE NEW YORK TIMES For Sikhs in the United States, India and elsewhere, the killing of six people at a gurudwara, or Sikh temple, in Wisconsin on Sunday afternoon has brought grief and sorrow but also concern that the rampage might be the latest example of a hate crime against Sikhs on American soil in the decade since the 9/11 attacks. The police have not yet offered a motive for Sunday’s attack, which ...