By SUSAN MONTOYA BRYAN
ALBUQUERQUE, N.M. (AP) — Federal authorities are taking to the airwaves to call attention to unsolved homicide and missing person cases on the largest Native American reservation in the U.S. The FBI announced Tuesday that it is running a 60-second radio ad in the Navajo language to call attention to what family members and advocacy groups have described as a crisis that is affecting Indian Country. The radio spot comes as some states put more resources toward the reporting and investigation of such cases. New Mexico recently adopted legislation to ensure more effective coordination among law enforcement agencies, while Washington created a first-in-the-nation statewide alert system for missing Native Americans.