Marc Grossman, U.S. envoy for Afghanistan and Pakistan, in Islamabad ISLAMABAD, Pakistan, Oct. 20 (UPI) -- U.S. Special Representative for Afghanistan and Pakistan Marc Grossman arrived in Pakistan Saturday for a two-day visit, officials said. Grossman is in Islamabad to discuss bilateral issues and situations in the region especially in Afghanistan, China's official Xinhua news agency reported. The Pakistani Foreign Ministry said Grossman's visit is part of an ongoing effort between Pakistan and the United States to discuss all issues of mutual interest.