An increase in terror incidents involving Islamic radicals who are U.S. citizens is vexing law enforcement officials and posing new questions about the roots of their radicalization.

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…

The U.S. military’s methodology for measuring violence in Iraq draws criticism from some quarters. The Pentagon concedes some kinds of violence don’t get included, but insists its consistent applic…

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…