The global financial crisis prompted Congress to press for stronger U.S. financial regulations. But experts debate what level of government involvement will help the economy long term.

Iran’s Supreme Leader remains the regime’s ultimate authority but controversy surrounding the country’s June 12 presidential election has raised new questions about the role and power of the head of …

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…

President Barack Obama says he will seek vigorous climate-change policy. Efforts to curb greenhouse gases pose considerable economic pitfalls, as well as opportunities.