From celebrating Juneteenth to the erasure of Black history: Charles M. Blow on America today

The political analyst and former New York Times columnist Charles M. Blow shares his thoughts about our nation's newest federal holiday, Juneteenth:

Last month I visited Emancipation Park in Houston, a park established in 1872 by the formerly enslaved as a space to celebrate Juneteenth, the day in 1865 that the news of emancipation was proclaimed in Galveston, Texas.