Afghan troop levels top agenda in Obama-Karzai talks from Reuters: Politics WASHINGTON (Reuters) - President Barack Obama and Afghan President Hamid Karzai began a crucial round of talks on Friday that are expected to help determine how fast the United States withdraws troops from Afghanistan and whether it leaves a residual force after 2014. feeds.reuters.com/~r/Reuters/PoliticsNews/~3/sG4-T5aHzw8/us-afghanistan-usa-idUSBRE90A0R320130111