US government agencies should rely on local tribes to asses and determine the needs of wild and free-roaming horses. Decisions on their care were made by the original inhabitants to begin with. Return it to them.
Wild horses are a national treasure. They need protections in place, so that the land that they graze upon is not destroyed and they are not sold off to slaughter houses in other countries. The BLM and horse rescues can and should manage the wild horse population.