An escape slave who freed hundreds of people from bondage is to be the face of redesigned 20 dollar bill in the United States. James Cook has the details. “Harriet Tubman was an American hero, a former slave who brave pedals to help hundreds of others follow her path to freedom, at first be a secret network known as the underground railroad, and then as a union spy in the civil war. After the war, Ms. Tubman, who struggled in poverty into the end of her life, fought for women suffrages. She replaces the slave-owning president Andrew Jackson on the front of the 20-dollar bill although he will continue to feature on the back.” World news from the BBC.