The Supreme Court seems open to a Texas law aimed at blocking kids from seeing online pornography. But the justices could still send it back to a lower court for more consideration of how the age verification measure affects adults’ free-speech rights.

U.S. Supreme Court justices expressed worries on Wednesday over the availability of online pornography to minors as they weighed the legality of a Texas law that requires pornographic websites to verify the age of users,

The Supreme Court on Wednesday seemed open to upholding a Texas law requiring age verification for accessing pornography online, though the debate turned murkier on the standard of scrutiny that should be applied to it and similar laws in more than a dozen states.

Texas and 18 other states have recently enacted laws requiring pornography websites to verify the ages of their visitors.

The U.S. Supreme Court declined on Monday to hear a bid to block Delaware's prohibition on assault-style rifles and large-capacity ammunition magazines, as well as a challenge to Maryland's handgun licensing requirements,