Food Stamps For Fast Food?

The USA Today ran THIS article about the push by Yum! Brands, the parent company of KFC, Taco Bell and Pizza Hut, to allow government food stamps to be redeemed at their restaurants.

I hold conflicting views about this.  On the one hand, I am generally in favor of free choice in almost any situation.  On the other, there are already clearly identified correlations between poverty, obesity, and fast food.