Family gives up home to help 30 villages

ATLANTA, Georgia (CNN) -- One day while driving with her father, Hannah Salwen noticed a Mercedes stopped next to a homeless man sitting on the curb.
"I said to my dad, 'If that guy didn't have such a nice car, then that guy could have a nice meal,' " the 15-year-old from Atlanta, Georgia, recalled.
And so began the tale of what the Salwen family calls "Hannah's Lunchbox."