Conversation so far:
When did Richard Nixon visit China?
In February 1972, Richard Nixon and his wife traveled to China
What did Richard Nixon and his wife do in China?
Richard Nixon and Kissinger met for an hour with Mao and Zhou at Mao's official private residence, where they discussed a range of issues.

Question: What issues did Nixon discuss with Mao and Zhou?
Self-contained rewrite: What issues did Richard Nixon discuss with Mao and Zhou?