President Hu Jintao of China had dinner with Microsoft owner Bill Gates at the start of a four day visit to the United States. The highlight is a meeting with President Bush tomorrow. China’s currency and trade policies and the nuclear activities of Iran and North Korea are expected to be discussed.Outside, demonstrators gathered to protest against Chinese policy towards Tibet and Taiwan. The protests also included members of the Falun Gong movement. The Chinese authorities condemn the group as a cult, but its members in the country say they are the victims of human rights abuses.