THOMPSON FALLS — Rod Knutson is hardly the recluse dug up by John McCain’s campaign, as some bloggers and critics of the presumptive Republican presidential nominee contend. The former prisoner of war is a decorated war hero who earned two Silver Stars, served 32 years in the U.S. Navy, moved up the ranks at the Pentagon, lectured at the prestigious Top Gun flight school, wound up in the popular 1986 movie of the same name, lived in as many ports on the West Coast as on the East and after retirement, sailed with his family throughout the Caribbean for 4½...