Would a New Democratic Majority Go Left... or Right?

If Democrats regain their majority, Republicans warn about high taxes, weak defense and social liberalism. But the Democrats have recruited candidates who promise to take their party back to the right. Would conservative newcomers put liberal veterans in check?  Would grassroots liberals have to be satisfied with the lesser of two evils? Plus, thousands of weapons are unaccounted for in Iraq, and an update on local violence and national politics in Oaxaca,  Mexico.