One out of every five people on the Navajo Nation in Arizona don't know where their next meal is coming from.

That's the finding from a survey conducted by public health researchers at Johns Hopkins.

They say it's the highest rate reported to date in the U.S.

Scientists call this "food insecurity."

A community on the western edge of the reservation has just gotten a grant to help.

From the Changing America Desk in Flagstaff,

reports.