This Al Jazeera America is clearly biased but does contain some clear points about the difficulty of Navajos to find enough food. It also omits two other peoples who like in the area, the Zuni and the Hopi. What is difficult for one who knows their history, as that all three of these were agrarians throughout their history. Hunting was just a way of subsidizing what they raised on the gardens and fields. I also note a lack of information about the Apache, another people of the area who must have similar problems.
Finally I wonder how much this is true of ALL American Indian reservations around the nation?
The full story is @ http://america.aljazeera.com/articles/2014/4/30/navajo-food.html\