This document discusses the history of conflicts between journalists' right to protect confidential sources and legal demands that they reveal those sources. It notes an early case from 1848 where a journalist was jailed for refusing to name a source. More recently, the 1972 Supreme Court case Branzburg v. Hayes rejected a reporter's privilege, though some judges advocated for a balancing test. While no federal shield law exists, about 30 states have passed their own laws providing some protections, though none are absolute. The boundaries of journalists' rights remain unclear and subject to ongoing legal debate.