What type of visits might be scheduled after initial requests were denied?

The correct choice pertains to the nature of visits that may be arranged in response to initial requests being denied. Specifically, foreign entity visits can denote interactions or visits from representatives associated with foreign governments, organizations, or individuals that may be of interest from a counterintelligence perspective. When initial requests are denied, it may indicate a heightened concern or scrutiny around those requests, prompting a formal or covert attempt to engage with that entity again under different pretenses or expectations.

Understanding the context in which these visits might occur is critical in counterintelligence. It suggests that foreign entities might try to reassess their approach to gain access to information or personnel that is otherwise restricted. This process reflects an adaptive strategy often employed by foreign intelligence services that could involve revising their tactics based on the responses they receive, thereby maintaining their engagement even after setbacks.

The other choices—prohibited photography, last-minute visitors, and wandering visitors—do not carry the same implications regarding organized attempts to reestablish contact with denied requests in the context of counterintelligence and foreign interactions.