What problems do U. S. professors and their associates face while acting as goodwill ambassador?

A goodwill ambassador is a person who advocates for a specific cause or global issue on the basis of their notability as a public figure. Goodwill ambassadors generally deliver goodwill by promoting ideals from one entity to another, or to a population. The term should be distinguished from the related concept of a brand ambassador, who plays a role in promoting a company or product through personal interaction. A goodwill ambassador may be an individual from one country who resides in or travels to another country, on a diplomatic mission (or international friendship mission) at a peer to peer level; that is: country to country, state to state, city to city, or as an intermediate emissary representative of the people of a specific organization or cultural group such as an indigenous tribe or enclave population.

Explanation: hope it helps ^w^