Luke Larson’s letter to the editor, “Telescope debate,” (Sept. 30) asks why casinos but not telescopes can be built on land sacred to American Indians. But this question confuses tribal land with sacred land; tribal land, where casinos are often built, is simply land held in trust by American Indian tribes, which may or may include lands considered sacred. While attitudes towards land vary among tribal/cultural groups, probably only selected land sites are considered truly sacred by most, and I doubt that any casinos are built on such land.