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
Video footage and eye witness accounts from the scene of a brutal murder in London on Wednesday seem to indicate that the attackers may have been politically motivated. Counterterrorism officers are leading the investigation. Two men have been arrested.
Two men with butcher knives hacked another to death Wednesday near a London military barracks and one then went on video to explain the crime — shouting political statements, gesturing with bloodied hands and waving a meat cleaver. Soon after, arriving police shot and wounded the unidentified assailants and took them into custody.