WASHINGTON (AP) -- THE ISSUE: In much of the U.S., families spend more on child care for two kids than on housing. And if you're a woman, it's likely you earn less than your male colleagues even though 1 in 4 households with kids relies on mom as the sole or primary breadwinner. That's according to the latest research that suggests while the U.S. economy has improved, women and their families are still struggling to make the numbers work....