There are a number of bills and laws regarding the regulation of wild mustangs.
I'm sure you are aware that the government controls the life and existence of these horses, though the Bureau of Land Management (BLM) seeks recommendations from private, non-government persons, in managing the horses.
I've written on this topic before, and more fully explained the 1971 Act in that post.
The Wild Free-Roaming Horses and Burros Act of 1971Sec. 3.
All wild free-roaming horses and burros are hereby declared to be under the jurisdiction of the Secretary for the purpose of management and protection in accordance with the provisions of this Act. The Secretary is authorized and directed to protect and manage wild free-roaming horses and burros as components of the public lands....
The Secretary shall maintain a current inventory of wild free-roaming horses and burros on given areas of the public lands. The purpose of such inventory shall be to: make determinations as to whether and where an overpopulation exists and whether action should be taken to remove excess animals; determine appropriate management levels of wild free-roaming horses and burros on these areas of the public lands; and determine whether appropriate management levels should be achieved by the removal or destruction of excess animals, or other options (such as sterilization, or natural controls on population levels).
I shared this documentary, among others, on my Facebook page. The Napa Valley Film Festival is featuring three equine films (my favorite is the Wild Mustang Challenge, go check out the trailer that I posted!)
The documentary below is a one-sided point of view on the wild mustang issue.
Typically I prefer a documentary that shows both sides of the story, but nonetheless, I wanted to share it here because it is important we are aware of the laws and tensions affecting horses.
I personally do not think the best solution is to be hands-off with the mustang population, I think that would be inhumane.
But watching the horses be shipped into Mexico was difficult footage to see, because once they cross our borders, we can't control the humane treatment of providing food and water.
A tense problem, indeed.