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…

This publication is now archived. What’s the extent of insurgent infiltration of Iraq’s security forces?Widespread, many experts say. Insurgents frequently appear to have inside information about the…