Senator Obama met with President Karzai in Afghanistan yesterday and later reiterated his call for additional American forces to deal with conditions in Afghanistan that he described as "precarious and urgent," capping a two-day tour as casualties continued to mount from violence in the war-torn country. Mr. Obama joined Mr. Karzai for a "working lunch," marking the first meeting for the Afghan president and the presumptive Democratic nominee. Mr. Obama's colleagues in the congressional... ...