SAN FRANCISCO — A law firm accused of shaking down Internet porn consumers by threatening to expose their identities is kicking up a storm at the U.S. Court of Appeals for the Ninth Circuit. And the first merits brief isn't even filed yet

Prenda Law Inc. and the Southern California lawyer fighting its alleged copyright trolling spent the weekend arguing whether U.S. District Judge Otis Wright overstepped by forcing Prenda to post a $237,000 appellate bond that would cover attorney fees on appeal.