How it rules on a Texas law requiring age verification on adult websites could shift the bounds of internet speech.

The Supreme Court on Wednesday seemed open to a Texas law aimed at blocking kids from seeing online pornography, though 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.

A majority of the Supreme Court signaled Wednesday that Texas may be permitted to require some form of age verification for pornographic sites, but left open the possibility that deeper First Amendment questions may not be resolved immediately.