Department of Homeland Security officers stand outside the Edward R. Roybal Federal Building in downtown Los Angeles on Sept. 1. Advertisement“Apparent ethnicity alone cannot furnish reasonable suspicion,” said Justice Brett M. Kavanaugh. “Today, the Supreme Court took a step in a badly wrong direction,” Ilya Somin, a George Mason University law professor, wrote on the Volokh Conspiracy blog. She added that immigration agents conduct targeted operations with the use of law enforcement intelligence. They also pointed to the data that suggests about 10% of the people in the Los Angeles area are illegally in the United States.