An Afghan man reads the Koran at a mosque in Kabul on October 27, 2009. Afghanistan's presidential rivals are reigniting their campaigns for a second vote, but analysts question whether a new election can be credible as calls for a government of national unity persist. Many observers fear a second round run-off on November 7 will be plagued by the same problems of fraud, low-turnout and Taliban violence that hit the first round of voting two months ago.