Katie Couric's Notebook: Interracial Marriage

The judge ruled that God put different races on separate continents for a reason. But the Supreme Court disagreed, overturning the decision in 1967and ending such laws for good.

These days, nearly 15 percent of U.S. marriages are interracial, up from 7 percent in 1980, according to a study by the Pew Research Center.

Interestingly, black men are more than twice as likely to marry outside their race than black women. And the same is true for Asian women compared to Asian men.

Those gender disparities show there are still social norms at play. More than 60 percent of Americans are fine with intermarriage - but that means 40 percent are not.

This country has long been a melting pot of races, religions and ethnicities. The natural progression are families who look more like a Benetton ad than the Cleavers photo album.

That's a page from my notebook.

I'm Katie Couric, CBS News.