Native American tracking unit in Arizona could be expanding

Since 1974, the elite unit has tracked smugglers across the 2.8 million acres of the Tohono O’odham Nation in southern Arizona and the 76-mile stretch of land bordering Mexico.Since 1974, the elite unit has tracked smugglers across the 2.8 million acres of the Tohono O’odham Nation in southern Arizona and the 76-mile stretch of land bordering Mexico.