Go to: Young Wonder At 15, Zach Hunter of Atlanta, Georgia, looks like an average teenager, but he has personally raised more than $20,000 to help free slaves around the world. His campaign, Loose Change to Loosen Chains, encourages students to donate spare change to groups working to end worldwide oppression. More than 30 schools now support his cause. Zach’s goal: to end modern-day slavery in his lifetime. • CNN Heroes: Zach Hunter • Starting 'LC2LC' at your school • Watch video podcast On the Web: • Loose Change to Loosen Chains