Pakistani President Gen. Pervez Musharraf has voiced scathing criticism of his Afghan counterpart, Hamid Karzai, over the resurgence of the Taliban, saying he is weak on fighting terrorism. Musharraf's remarks, in an interview published Thursday by the Spanish daily El Pais, could raise tension between the two key US allies in the war on terror as the two presidents prepare to meet later this week in Turkey to discuss their differences on fighting the Taliban. "The ones who do nothing against terrorism, like Karzai, are those who criticize those who fight, like us," said Musharraf, who is in Spain on a four-day visit. The relationship between Karzai and Musharraf, always strained, has deteriorated in recent months as the two have traded public accusations. At a reconciliation meeting in Washington in September with US President George W. Bush, the two men failed to shake hands.