"1937Z"^^ . "Mark Shields"@en . "Shields, Mark"@en . . "United States Marine" . . . "Mark Shields (born May 25, 1937) is an American political columnist and commentator.Since 1988, Shields has provided weekly political analysis and commentary for PBS's award-winning PBS NewsHour. His current sparring partner is David Brooks of The New York Times. Previous counterparts were the late William Safire, Paul Gigot of the Wall Street Journal and David Gergen."@en . . "1937-05-25Z"^^ .