Besides raising money, organizing events, and getting Hollywood bigwigs involved with Homeboy Industries, Caruso spends hours each week with reformed ex-convicts.
As a Ph.D. at Princeton University, 28-year-old Patton studies arms control and disarmament issues with a particular focus on the role of virtual reality.
Pyfrom used her retirement money to buy and customize a bus and outfit it with computers, creating a mobile classroom that she called Estella's Brilliant Bus.
"One of the philosophies I live by is embracing chaos—or the idea that chaos is just tragedy plus opportunity," says Oliver, who is on our list of the top 30 thinkers under the age of 30.
John Lott is a one-man pro-gun research machine whose work has been cited nearly 200 times by the National Rifle Association. The problem? Many of his peers have major misgivings about his methods.
Initially focusing on Lebanon, where her parents are from, Minkara worked with children who had been overlooked by society owing to their visual impairments.
Perry's proactive work in the intersection of gayness, religiousness, and blackness won her an Encore Purpose Prize fellowship, a competitive award for seniors.