The Vietnam War was a crucial watershed for photo-journalism. Among the distinctive breed of courageous photographers who brought the scale of the war's atrocities and devastation to the public consciousness was Welsh-born Philip Jones Griffiths, who has died of cancer at the age of 72. His 1971 book Vietnam Inc. set a high bar for the myriad volumes which would follow. Jones Griffiths became a regular contributor to the Observer, McCalls, the Sunday Times and New York Times magazines. He was a key member of Magnum where he served as president from 1980 to 1985. Martin Wollacott. veteran foreign correspondent of the Guardian, contributes a perceptive insight to the obituary attached.