Border protocols automatically triggered in search for Nancy Guthrie, retired agent says

As the search continues for 84-year-old Nancy Guthrie in southern Arizona, authorities say there is no evidence she was taken across the U.S.–Mexico border, even as experts note that federal border protocols automatically come into play in disappearances near the international boundary.

Pima County Sheriff Chris Nanos told Fox News’ Jonathan Hunt that investigators have found no indication Guthrie was transported south of the border.

"You know, I’m sure the FBI has looked into that as well, but no," Nanos said.