Ari Shapiro

One young woman is walking to find work so she can send money back to Venezuela for a nephew who has leukemia.

Another is traveling with four of her five kids, in search of food for her family.

As another family hikes along, the husband walks ahead to hide his tears from his children.

Williams Cancino fled his post as a Venezuelan special forces official to neighboring Colombia last month. Now he is restless to get back to his home country to help overthrow the government of Nicolás Maduro.

"I think it's time to act," says Cancino, 27, at a park in the Colombian border town of Villa del Rosario. "It's time to organize ourselves, the soldiers that know how to fight."

Ending HIV transmission in America within the next decade — a stated goal of the Trump Administration — isn't a question of coming up with new medication. The medicines to prevent and treat HIV infections already exist.

You know LeBron, Serena and Messi.

But do you know Pepe, Flame and Jenga?

They're another kind of superathlete on a one-name basis with fans — sled dogs preparing for the Iditarod race.

Blair Braverman, the team's musher, will take the dogs out for their first Iditarod when the race starts Saturday, braving some 938 miles of trail across Alaska, from Anchorage to Nome.

Chiwetel Ejiofor is best known for his starring role in the movie 12 Years a Slave. Now he's making his directorial debut.

A decade ago, the English actor of Nigerian descent picked up a best-selling memoir called The Boy Who Harnessed the Wind. It's about William Kamkwamba, a schoolkid in Malawi whose ingenuity helps save his village from famine.

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