WASHINGTON — The Supreme Court appeared far from a consensus Tuesday on whether the Federal Communication Commission’s crackdown on broadcasters who allow “fleeting expletives” to reach the airwaves should continue.

Following an hour-long argument in FCC v. Fox Television Stations in which no one actually uttered the expletives at issue, it seemed possible that the dispute will be sent back to the Second Circuit U.S. Court of Appeals for further study on administrative law or constitutional issues, or both.