Rep. Joseph Crowley (D-N.Y.) has for months been advocating that the FBI collect data on hate crimes against Sikh Americans. Sunday’s tragedy in Wisconsin, in which six people were killed at a Sikh temple, underscores his push."This is not the first time that Sikhs have been attacked," Crowley, whose New York City district includes parts of Queens and the Bronx, told The Huffington Post in an interview on Monday. "Unfortunately it’s been growing consistently, on an ongoing basis. That’s what my concern has been."