Winners of the 2012 Pulitzer Prizes

Public service: The Philadelphia Inquirer for a series that revealed widespread and unreported violence in the city schools.

Investigative reporting: The Associated Press for a series of stories on a New York Police Department surveillance program that monitored law-abiding Muslims.

Breaking news reporting: The Tuscaloosa (Ala.) News for its coverage of a deadly tornado shortly after reporters had received training in how to use social media for news coverage.

Investigative reporting: The Seattle Times reporters Michael Berens and Ken Armstrong for a report on the deadly consequences of Washington state’s embrace of methadone for treating chronic-pain patients with statesubsidized health care.

Local reporting: The Harrisburg (Pa.) PatriotNews, reporter Sara Ganim for breaking the Penn State sexual abuse scandal that brought down football coach Joe Paterno.

National reporting: The Huffington Post for military correspondent David Wood’s series on the experiences of catastrophically wounded soldiers returning from Iraq and Afghanistan.

Feature writing: Eli Sanders’ haunting story for Seattle’s alternative weekly The Stranger described a 38-year-old woman who survived a brutal attack that took the life of her partner.

Explanatory reporting: The New York Times reporter David Kocieniewski for a series on how wealthy people and corporations use loopholes to avoid taxes.

International reporting: Jeffrey Gettleman of

The New York Times for his coverage of famine and conflict in East Africa.

Commentary: Chicago Tribune columnist Mary Schmich for pieces that “reflect the character and capture the culture of her famed city.”

Breaking news photography: Massoud Hossaini of Agence France-presse for his picture of a girl weeping after a suicide bomber attacked a shrine in Afghanistan.

Editorial cartooning: Matt Wuerker of Politico for work that poked fun at partisan fighting in Washington.

Feature photography: Craig Walker of The

Denver Post chronicled Colorado resident Scott Ostrom’s struggles with severe post-traumatic stress disorder after two deployments to Iraq.