Navajo or Dine

This is a picture of Ray Coin our RS bus driver.  Ray is not only an experience bus driver but he also has his own tour business as well as leading Road Scholar trips.  We enjoyed him very much.  He is a Hopi, not a Navajo.  Nevertheless we asked him to explain the following cartoon which we saw in the Navajo Times.  Ray explained that the Navajo have always called themselves Dine (pronounced dineh) and the name Navajo come from what others called them.  Now among the 350,000 members of the tribe, there is some discussion aka controversy as to whether they should be known as "Navajo" or "Dine".  The cartoon depicts various Navajo leaders who have different opinions about this matter.