An overview of Peruvian terrorist groups, Shining Path and Tupac Amaru.

South America faces energy shortfalls at the same time that several countries have nationalized energy resources. Experts say a lack of cooperation on energy policy could hinder regional economic gro…

Since 9/11, much of al-Qaeda’s operational capacity has been dismantled but experts say the group’s strength now lies in its ability to inspire others to carry out terrorist attacks.

Backgrounder: U.S. debate over treatment of detainees hinges on interpretation of the Geneva Conventions.

The prosecution of alleged terrorists in U.S. civilian criminal courts and in new military tribunals has been fraught with controversy. U.S. federal courts have gradually asserted their role in the m…