Source: The Orange County Register
http://www.ocregister.com/ocregister/homepage/abox/article_1095149.php
On April 10, 2006 The Orange County Register reported, "Many in the United States who practice Sikhism feared discrimination or physical confrontation and stopped wearing their turban after the Sept. 11, 2001 terrorist attacks because they were assumed to be Muslim, said Chadha, co-director of interfaith activities of the California Sikh Council. About 1,000 people came to the Guru Nanak Sikh Temple of USA in Buena Park to recognize International Sikh Turban Day, held Sunday for the first time in Orange County. The Sikh Children Forum started holding the function in 2002 in Northern California with the hope of encouraging those who practice Sikhism - but who do not wear their turban regularly - to wrap their hair up for the day, or join the 'fold'... There are about 10,000 people in Orange County who practice Sikhism, Chadha said."