In addition to Fortune's 40 Under 40 list, we're also keeping our eye on these 20 innovators, young guns from a wide range of industries and backgrounds.
|School lunch worker: I got fired for feeding a hungry child|
|The death of the $200 iPhone|
|The $10,000 battle to save two dogs from the death penalty|
|Venezuela's currency isn't worth a penny|
|China's 3 richest men are in hot water|