For reporting by Andrew Schneider and Matthew Brelis, which revealed the inadequacy of the FAA's medical screening of airline pilots and led to significant reforms.
For their series "Disorder in the Court," which revealed transgressions of justice in the Philadelphia court system and led to federal and state investigations.
For coverage of the aftermath of the Challenger explosion, which included stories that identified serious flaws in the shuttle's design and in the administration of America's space program.
For "The Fall of the House of Bingham," a skillful and sensitive report of a powerful newspaper family's bickering and how it led to the sale of a famed media empire.
For his extraordinary services to American journalism and letters during his 31 years as chairman of the Pulitzer Prize Board and for his accomplishments as an editor and publisher.