At today's White House briefing, Press Secretary Robert Gibbs said Barack Obama has spent "close to 20 direct hours" in meetings on Afghanistan since Gen. Stanley McChrystal's request for tens of thousands of reinforcements was submitted over two months ago with a warning the war would be lost in twelve months without more troops.Gibbs says Obama also spends "quite a bit of time" thinking about the war in Afghanistan.Gibbs was asked about a statement by the mother of one of the fallen soldiers, Sgt. Dale Griffin, killed in Afghanistan this week whom Obama met with at Dover early Thursday morning....