Jeffrey Pyle, a Boston-based lawyer who specializes in First Amendment law, said the FBI’s action was “highly unusual and aggressive move by the Department of Justice.”

Some media executives are calling the FBI's search of a reporter's home yesterday an alarming intrusion into the freedom of the press.

Whistleblowers, such as Chelsea Manning, Edward Snowden, Thomas Drake, and John Kiriakou, who helped journalists inform the public about war crimes, torture and unconstitutional surveillance, were tra...