Once again, a line seems to be drawn in the sand between Congressional Democrats and Republicans.  This time the issue is what to do about U.S. troop levels in Afghanistan, and when to do it.  Things were certainly not made any better by former Vice-President Cheney’s accusation that Obama was “dithering” in making a decision.  To their credit, Republican leaders Orrin Hatch and John McCain were quick to distance themselves from Cheney’s remarks.  Most foreign policy experts within the Obama Administration and outside of government generally agree that the ongoing conflict in …