It related to the Joint Defense Facility Pine Gap

Pine Gap is known to be involved in a range of activities, including satellite tracking and missile defense. It is a critical component of the Five Eyes intelligence-sharing network, which also includes the United States, Canada, the United Kingdom, and New Zealand.

The CIA is known to have a significant presence at Pine Gap, although the extent of their involvement is not publicly known. It is possible that a hypothetical CIA base in the center of Australia could be related to Pine Gap, with the CIA using the base to support its activities at Pine Gap.

The reason why Pine Gap is of interest to the United States is its strategic location. The facility is located in a remote and sparsely populated area, which makes it ideal for conducting sensitive intelligence operations without attracting attention. It is also located close to key areas of interest, including Southeast Asia, China, and the Pacific Islands.