Katharina had already walked the first 2,500 miles of the trail, which starts at the Mexican border, and she had just 150 to go. So Katharina brushed aside nosy Nancy's carping concern.

"That's the last I saw of her," Nancy said.
She said the whole reason she did the hike alone was because she'd given up on people.

"I lost faith in humanity," Katharina said.

But she said she got her faith back in a "really big way."

"Come to America," Katharina said.