After a long national decline in time spent on housework, the study joins a growing body of research on how chores shape the dynamics of marriage.

WSJ: The Sex-Housework Link

Even though Carnahan never digs up anything very surprising about these stock characters, the terse, shape-shifting group dynamics are enough to keep us watching.

CNN: Review: 'The Grey' is a walk on the wild side

But what matters more than this one-day snapshot of the 2012 horse race are the dynamics determining the shape of the field.

CNN: Picking Bachmann or Perry is risky for GOP

The General Dynamics and Lockheed Martin versions of the new radios are in better shape, partly because they came later and benefited from mis-steps that Boeing made in executing what experts agree was a very demanding set of performance specifications.

FORBES: New Radio Could Revolutionize Combat for U.S. Forces