After the Army, Clark signs up as businessman Doors open for retired general Retired Gen. Wesley Clark’s business resume reads as if it belongs to an upwardly mobile executive who’s had his nose to the grindstone for three decades. In the three years since he left the Army, Clark has signed on as an adviser or director with more than half a dozen companies, written two books, worked as a CNN pundit and launched a campaign to become president of the United States. The common denominator: He was working with a government he knows inside out. The information that...