Successive U.S. administrations have sought to justify controversial domestic surveillance programs amid criticism from Congress and rights activists, explains this Backgrounder.

Trade accounts for an increasing portion of the U.S. economy, and the Obama administration has embraced a ramped up export strategy. But debate persists over the merits of a vigorous free trade agend…

With U.S. unemployment and high debt threatening Americans at home and U.S. power abroad, this Backgrounder looks at congressional candidates’ difficulty in articulating policies that balance job cre…

Close Republican and Democratic presidential nominating contests are focusing attention on the role of delegates, who ultimately will be choosing their party’s nominees.

The air travel system remains one of the most high-profile targets for terrorists. This backgrounder examines efforts to improve aviation security since the 9/11 attacks.