This is an older report, but still relevant.
Contribution of Animal’s Angels
Texas Taxpayers Funding Horse Slaughter?
Recent investigations at several Texas export pens reveal some disturbing issues. The pens, located in Eagle Pass, Socorro and Del Rio, are all operated by the Texas Department of Agriculture. Problems and concerns include: Despite the fact that horses will spend 38 hours or more in transit, no food is provided for the horses at the pens. This is a clear violation of the commercial transport of equines to slaughter regulations.
In the early morning, horses arrive at the export pens from locations as far as 15 hours away. They are unloaded into barren pens, where they remain for the day.

Horses are transported across the border in open roof trailers designed for cattle.

Particularly unacceptable is the practice of returning lame, sick,blind or injured horses with the shipper.

In addition, new information about the cost to taxpayers to run these export pens truly begs the question: Why should the American taxpayer subsidize wealthy Belgian horse slaughter companies, an industry a very significant majority of Americans oppose? Documents obtained by Animals’ Angels prove that the cost of operating the pens far exceeds the modest fees collected on the horses awaiting export for slaughter.
Why would we want to subsidize wealthy foreign interests whose profits require inherently cruel and inhumane treatment, a business which thrives on overbreeding and even horse theft, and an industry that makes responsible horse owners sick at the prospect of selling a horse because it can so easily end up in the wrong hands?