The U.S. patent system has generated growing debate over whether it helps foster innovation or stifles it through unnecessary protections, as this Backgrounder explains.

The Gulf of Mexico oil spill spotlights the growth of deepwater drilling and the challenges of balancing strong environmental regulation with efforts to expand U.S. domestic oil production.

Countries increasingly employ public relations firms and the techniques of brand marketing to build cohesive images for their nation.

Primeiro Comando da Capital (PCC), a Brazilian prison gang, staged a series of attacks in May that paralyzed the city of Sao Paulo. Subsequent waves of violence have raised concerns about the organiz…