WASHINGTON : Chinese companies are allegedly refusing to cooperate with the US Commerce department in allowing checks on whether American dual-use goods sold to Beijing are being diverted for military purposes. "We conduct such end-use verification visits without problem, in over 85 countries. However, we have difficulty on this issue in China , where the government often restricts our ability to conduct this routine activity, "Kenneth R. Juster, Undersecretary of Commerce, told reporters. He warned that unless Beijing changes its policy, "our ability to license exports to certain Chinese companies will decrease." Juster said that exports to China of licensed...