Arizona Gov. Janet Napolitano talks to Vivian Juan Saunders, right, chairwoman of the Tohono O\' Odham Nation at the San Miguel Gate on the Tohono O\' Odham Reservation near Sells, Ariz., during a tour of the border Wednesday.
By Mark Scarp, contributing columnist
By Jerry Brown, contributing columnist
Guest Commentary by Bill Richardson
Guest Commentary by Shawn Thiele
By Mark Heller, Tribune