The U.S. Supreme Court ruled unanimously Monday against warrantless searches by police and seizures in the home in a case brought by a man whose guns officers confiscated after a domestic dispute. "The very core of the Fourth Amendment's guarantee is the right of a person to retreat into his or her home and 'there be free from unreasonable governmental intrusion,' " Justice Clarence Thomas wrote for the court. The case involved a heated argument between a long-married couple, Edward and Kim Caniglia. He brought out a gun and told her to shoot him to put him out of his "misery." Then after he left the house in a huff, she hid the gun and spent the night in a motel. The next morning, unable to reach her husband, she asked police to escort her home because she was afraid he might have harmed himself.