"Married couples have dropped below half of all American households for the first time..."

"... the Census Bureau says, a milestone in the evolution of the American family toward less traditional forms. Married couples represented just 48 percent of American households in 2010.... What is more, just a fifth of households were traditional families — married couples with children — down from about a quarter a decade ago, and from 43 percent in 1950, as the iconic image of the American family continues to break apart."

(NYT link.)