A deadly parasite, faulty sewage systems, and the sisters fighting for their small US community

What researchers found in the Reyes Ibarras' home was shocking. What's worse, the sisters say, is no one's helping

When the letter arrived with the logo of a noted university in the corner, Veronica Reyes Ibarra expected good news. She called her boyfriend, her mom and her sisters over: You guys, look what I got, I think it's a scholarship."

But as she scanned the page, she suddenly wasn't sure she had the courage to read it out to them.