The White House says President Obama may decide about troops for Afghanistan even before the run-off election on November 7. But a lot depends on security, how the voting's conducted and the outcome. We look at the prospects. Also, Iran strikes a nuclear deal, and dramatic violence in Rio as Brazil tries to raise money for the 2016 Olympic Games.
Banner image: Afghan President Hamid Karzai (R) speaks along side with US Senator John Kerry (2nd L) during a joint news conference announcing that there will be a run-off election on November 7 at the presidential palace yesterday in Kabul. Photo: Paula Bronstein /Getty Images