 They were also the basis for prosecution in 1991 in "Bray v. Alexandria Women's Health Clinic".In 1965, the House Un-American Activities Committee started an investigation on the Klan, putting in the public spotlight its front organizations, finances, methods and divisions.After federal legislation was passed prohibiting legal segregation and authorizing enforcement of protection of voting rights, KKK groups began to oppose court-ordered busing to desegregate schools, affirmative action, and the more open immigration authorized in the 1960s.