SUTTON, Circuit Judge. Federal prison officials seized one of Scott Callahan’s paintings and some mail-order photos on the ground that they violated the prison’s rules against possessing sexually explicit materials. After filing internal grievances without success, Callahan turned to federal court to seek money damages and other relief under the First Amendment’s right to freedom of speech. The district court declined to create an implied cause of action, often called a Bivens claim, under the First Amendment for Callahan’s claim. We affirm.