review of fine book on Picasso's Guernica

"When in February 2003 Colin Powell went before the United Nations in a last-ditch attempt to win approval for an aerial bombardment of Baghdad to be code-named Shock and Awe, a blue 'shroud' was thrown over the 'Guernica' copy hanging before news cameras in the corridor. 'Painted as a passionate protest against senseless violence,' van Hensbergen observes, 'it was once again succeeding only too well.' "