 Complete the following phrase:  Between 1949 and 1971, USChina relations were uniformly hostile, with frequent propaganda attacks in both directions. At the 1954 Geneva Conference, Secretary of State John Foster Dulles forbade any contact with the Chinese delegation, refusing to shake hands with Zhou Enlai, the lead Chinese negotiator. Relations deteriorated under President John F. Kennedy 19611963. Before the Cuban Missile Crisis, policymakers in Washington were uncertain whether or not China would break with the Soviet Union on the basis of ideology, national ambitions, and readiness for a role in guiding communist activities in many countries. New insight came with the 