ISLAMABAD/LONDON – Pakistan’s spy chief has cancelled a trip to Britain, a spokesman said on Saturday, but Islamabad played down a row over remarks by British Prime Minister David Cameron suggesting Pakistan was not doing enough to fight terrorism. A spokesman for the Inter-Service Intelligence (ISI) agency said on Saturday that senior intelligence officials, including ISI head Lieutenant General Ahmad Shuja Pasha, would not go to London today as planned for counter-terrorism talks. But President Asif Ali Zardari will still visit Britain next week, a government spokesman said. Cameron, speaking in Pakistan’s rival India on Wednesday, told Islamabad that it must not become a base for militants and “promote the export of terror” across the globe. A Pakistani foreign ministry spokesman said this week his country had been “saddened” by Cameron’s remarks. Secretary of State Hillary Clinton, on a recent visit to Pakistan, said she believed al Qaeda leaders were still hiding in Pakistan and that some elements in the Pakistani government knew where they were.