Jazz musician, bassist Esperanza Spaulding. Concord Music Group
Gregg Treinish, founder and executive director of Adventurers and Scientists for Conservation. Courtesy of Deia Schlosberg
Novelist Téa Obreht. Beowulf Sheehan/Courtesy of Téa Obreht
Raj Janagam is founder of Cycle Chalao, India's first bike-sharing system. Matt Nager
Ronan Farrow, Rhodes Scholar and current Special Adviser to the US Secretary of State on Global Youth. Ann Hermes/Staff
Imam Khalid Latif is the executive director of New York University's Islamic Center and the New York City police department's youngest chaplain. Ann Hermes/Staff
Becca Heller, founder and director of the Iraqi Refugee Assistance Project. Courtesy of Echoing Green
Karsten Januschke is one of Germany's youngest opera orchestra conductors. Courtesy of Karsten Januschke
Alisa Weilerstein, cellist. Jamie Jung/Courtesy of Alisa Weilerstein
Sameh Wadi, executive chef and co-owner of Saffron Restaurant & Lounge in Minneapolis. Courtesy of Saffron Restaurant
Andrea Pasinetti, co-founder and co-executive officer of Teach for China. Courtesy of Teach for China
Alex Morse, 22, is the mayor of Holyoke, Massachusetts. Melanie Stetson Freeman/Staff
Jennifer Pellegrine, Director of Data and Assessment, at the Lady Liberty Academy Charter School in Harrison, New Jersey. Ann Hermes/Staff
Ana Ularu, Romanian actor. Courtesy of Alex Galmeanu
Enrique Lomnitz, director of the non-governmental International Renewable Resources Institute, Mexico. Courtesy of Enrique Lomnitz
Rachel Sterne, Chief Digital Officer for the Mayor's Office of Media & Entertainment, New York. Courtesy of the Mayor's Office of Media & Entertainment, New York
Ankur Jain, founder of Kairos Society which funds undergraduate entrepreneurs from around the world to address global issues. INC. Magazine/Courtesy of Ankur Jain
Joshua DuBois, special assistant to the President and executive director for the White House's Faith-based and Neighborhood Partnerships. Courtesy of The White House
Romy Portuondo Remior, 22, Cuban-American youth activist. Courtesy of Romy Portuondo Remior
Film writer and director Drake Doremus. Paramount Pictures
Shwetak Patel of the University of Washington, a 2012 MacArthur Felowship winner. Courtesy the John D. & Catherine T. MacArthur Foundation
Ryan Scott McDonnell, executive director of Boston Faith & Justice Network. Ann Hermes/Staff
Jared Cohen is head of Google Ideas. Google
Shehrbano Taseer, human rights activist in Pakistan. Michael Ian/Courtesy of Human Rights First
Fernando Cutz, the first student body president of the Clinton School of Public Service at the University of Arkansas in Little Rock. He founded a highly successful program for impoverished Arkansas Delta high school students, helping them with financial access for college. Jacob Slaton/Courtesy of the Clinton School of Public Service
Aaron Schock, R-Ill., the youngest member of the 111th Congress. Susan Walsh/AP/File
Colette Hll Vander Plas, Chris Corbin (on tractor), Matt Parker and Sally Gran harvesing carrots at Table Top Farm in Nevada, Iowa. Dennis Chamberlin
Tech blogger Mac Jordan Degadjor, social media entrepreneur in Ghana. Courtesy of Mac Jordan Degadjor
Akiko Naka, recruited to help launch Facebook in Japan. Yuka Yamaguchi/Courtesy of Akiko Naka
Rene Silva, a 17 year old journalist, uses the social media outlets of the newspaper he started when he was 11 years old to keep neighbors informed in his favela, one of the most dangerous slums in Brazil. Courtesy of Voz da Comunidade
Adam Fitzmaurice, activist, at the Occupy London camp at St Paul's Cathedral. Ian Evans
Ammar Aziz is a musician, filmmaker, poet, and liberal activist in Pakistan. Courtesy of Ammar Aziz/Adeel & Ahmad
While the German economy is being held up as the model for ailing Europe to follow, some Germans say that the benefits of the boom aren't reaching them.
When President Obama stood in Berlin today and said that budget balancing must not trump the priority of improving lives, some saw a dig at German Chancellor Angela Merkel, who has led the call for austerity across Europe.
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