The FBI keeps a Hate Crimes Incident Report Form which collects data on hate crimes in the U.S. There's nothing on the report form that documents crimes against Sikhs.

Back in April, 92 members of Congress signed a letter to the Department of Justice urging the FBI to collect information on hate crimes committed against Sikh Americans.

"Our understanding is that the FBI may be relying on older forms which count hate crimes against Sikhs as anti-Islamic (Muslim) hate crimes," the letter says. "We believe that not including Sikhs within hate-crime data-collection may diminish the safety of the 500,000-strong Sikh-American community and weaken the quality of essential hate crimes data overall."

As of the recent Sikh temple shooting in Wisconsin, it appears that the FBI's form hasn't been changed.

Here's the full body of the letter: