FPI Director Robert Kagan writes:  Unnoticed amid the sniping in Washington over health care and the wailing about "broken government," a broad and durable bipartisan consensus has begun falling into place in one unlikely area: foreign policy. Consider the fact that on Afghanistan, Iraq, and Iran -- the most difficult, expensive, and potentially dangerous foreign challenges facing the United States -- precious little now separates Barack Obama from most Republican leaders in and out of Congress. – Foreign Policy