CRYSTAL LAKE – After his first trip to the Pine Ridge Indian Reservation in South Dakota, Lloyd Mueller vowed to never return.

What he saw – children living in filth, surrounded by animal feces, sleeping in a dark, crowded basement – made his stomach turn, especially when he thought of his own grandchildren.

“I was so mad,” Mueller said. “First of all, I was mad at myself that I live in a country where I was so privileged and my fellow countrymen were living like this. I was mad at the government for not helping. I was mad at the parents for allowing that to happen.”