Branzburg v. Hayes (1972)
The Supreme Court ruled 5-4 that journalists could be compelled to testify before grand juries about confidential sources. Justice Lewis Powell's concurring opinion said the press still deserves some protection, and lower courts have cited it for decades.
Reporters lost the claim to an absolute privilege against testifying.
Courts have balanced subpoenas against press freedom case by case, and most states enacted shield laws.
The Fourth Circuit used the same balancing approach, weighing the leak probe's needs against the burden on newsgathering.
