A group representing 22,000 Hispanic and Native American scientists in the United States has dropped Phoenix, Arizona, from its potential 2012 conference sites owing to the state's new immigration law. “We do not want to expose our members and conference participants to the potential for harassment by law enforcement,” says Judit Camacho, executive director of the Society for the Advancement of Chicanos and Native Americans in Science (SACNAS), based in Santa Cruz, California. The law lets officials query a person's immigration status based on a 'reasonable suspicion' that he or she is an illegal immigrant. SACNAS announced its decision on 10 May. The society will hold no events in Arizona unless the law is repealed.