All very neat, but each of the co-authors also confounds the left/right stereotypes. Roth-Douquet is married to a Marine, and lives on a military base in Parris Island, South Carolina. Schaeffer, whose formative years were spent at L'Abri, his parents' mission in Switzerland, lives in Salisbury, on Boston's North Shore, by the blue waters of the bluest state. And he voted for Obama.
The two first collaborated on the 2006 book AWOL: The Unexcused Absence of America's Upper Classes from Military Service — and How It Hurts Our Country (Collins), and since then, says Schaeffer, "our relationship as friends has changed the way we see people we disagree with."