U.S. Supreme Court justices indicated they may throw out otherparts of President Barack Obama's health-care law if they strikedown its core requirement that Americans obtain insurance.

A day after the justices cast doubt on the insurance mandate'ssurvival, they tangled today over the consequences such a rulingwould have. The court is in its third and final day of arguments onObama's signature domestic achievement, a law that would extendhealth coverage to 32 million people.

Justices across the ideological spectrum expressed interest inoverturning at least provisions that require insurers to coverpeople with pre-existing conditions. The administration and theinsurance industry say those rules are so closely linked to themandate that they can't be separated.