President Bush has asked Congress for still more troops to increase the buildup in Iraq.  At the same time, there's a report that the Pentagon is planning a gradual withdrawal in case the troop increase doesn't work. We also get diplomatic reaction to the weekend meeting that included both the US and Iran.   Plus, Guantanamo hearings continue in Washington—under total secrecy and, on Reporter's Notebook, Halliburton, the largest US contractor in Iraq, is moving its headquarters from Houston to Dubai.  We'll hear about accusations of corporate greed.