Participated in an amicus brief (with the Reporters Committee and other amici) filed with the U.S. Court of Appeals for the Third Circuit in CIR v. SEPTA. This case concerns a policy of the Southeastern Pennsylvania Transportation Authority (“SEPTA”) that bans certain advertisements on the Philadelphia-area transit system based on their content. The brief argued that the SEPTA policy could prohibit ads that news organizations rely on to reach the public; that promote press freedom; and that describe specific news stories. The brief urged the appellate court to hold that the SEPTA policy, both in its original and amended forms, is vague and imprecise, unreasonable, incapable of reasoned application, and unconstitutional. [2019]