Generate text that refutes this claim: Damages diplomacy to be too open  Diplomacy can be very personal; diplomatic initiatives are often the result of a single person, and the individual leader is necessary to conclude negotiations. Transparency about a leader's health may therefore prevent deals being done; Nixon went to China despite Mao's ill heath meaning the supreme Chinese leader contributed little to the historic change in diplomatic alinements. 1 Would such a momentous change in alignment have been possible if both the Chinese and American public knew about Mao's ill health? The Americans would have considered any deal unreliable as they could not be sure it was Mao who made the decision, while opponents in China could have argued that it was advisers like Zhou Enlai who made the deal not Mao himself potentially enabling them to repudiate or undermine the deal.  1 Macmillan, Margaret, Seize the Hour When Nixon met Mao, John Murray, London, 2006, p.76
ch debate free speech and privacy health general international africa politics
If the leader in-charge is in illness, to avoid any repudiation, the representative from the other side could meet the leader in order to confirm or even have a video conference with the leader in charge. The leader only needs to set the overall policy, not negotiate the fine details. When Nixon went to China the Americans knew Mao was ill but realised that he still set the overall direction of policy.