The United States believes China is still cooperating with Saudi Arabia on missiles and with Pakistan on nuclear technology and missiles, despite Beijing’s promises to control arms proliferation, U.S. officials said. These are among the subjects expected to be discussed when senior U.S. and Chinese officials meet this week in Beijing, the U.S. officials told Reuters. Undersecretary of State John Bolton, the top U.S. non-proliferation official, plans to encourage Chinese participation in an international arms interdiction regime but Beijing’s own activities will also be a focus, officials said. The focus on proliferation has intensified since the father of Pakistan’s atomic weapons program, Adbul Qadeer Khan, confessed to selling nuclear secrets to Libya, Iran and North Korea. Full Story