Judy Woodruff:

Portland, Oregon, is known as a hub of liberal and progressive thought. It's also one of the most gentrified big cities in the country.

Now an ambitious new program, which some experts are calling the first of its kind, aims to atone for the repeated displacement of thousands of African-American families from North and Northeast Portland.

In a city with soaring home prices and a steady pattern of gentrification, can it make a difference?

Amna Nawaz and producer Mike Fritz recently traveled to Portland to see firsthand how it's all playing out.