This pay gap not only unfair, it implies that women are of lesser value than men. And that is shameful.
What you can do:
The Senate is expected to vote on The Paycheck Fairness Act (S. 84) as soon as this week. According to the Leadership Conference on Civil and Human Rights, "[t]his important bill would update and strengthen the Equal Pay Act of 1963, which made it illegal for employers to pay unequal wages to men and women who perform substantially the same work."
Call your senators (202-224-3121) and urge them to vote "yes" on the Paycheck Fairness Act (S. 84) and support equal pay for women!