U.S. Supreme Court justices hinted they might strike downPresident Barack Obama's health-care law as the court's Republicanappointees suggested Congress went too far by requiring Americansto obtain insurance.

On the second of three days of arguments in the historic case,justices' questions indicated they might split 5-to-4, with thecourt's five Republican appointees banding together to topple thelaw.

Justice Anthony Kennedy said the measure is unlike others thecourt upheld previously because it tells individuals they “mustact.” Kennedy, who most often occupies the court's ideologicalmiddle ground, said, “That changes the relationship of thegovernment to the individual in the very fundamental way.”