In the PMO War Room, columnist Christie Blatchford must have seemed an inspired choice. She can turn a purple phrase with the best of them. She stands foursquare for troops, widows, and orphans. She's against plummies, toffs, and pointyheads. She's long on guts and glory, short on assay. She has an ego as big as the Ritz, and fragile as a Gruyère Soufflé. To receive a document drop on a Matter of National Importance would be sweet validation. So the Harper Government—someone in the Harper Government—got the brilliant idea of handing Blatchford a trove of Richard Colvin's long-sought emails from Kandahar,...