Final answer:
The discussion that should be reported to the DHS Insider Threat Program is the one about the government's invasion of citizen privacy, as it is a potential threat to national security and privacy rights.
Step-by-step explanation:
The discussion that should be reported to the DHS Insider Threat Program is the one about the government's invasion of citizen privacy. This is because the government's invasion of citizen privacy can be seen as a potential threat to national security and could potentially violate the privacy rights of individuals.
Foreign domination of high performance computing, while a concern, may not immediately pose a threat to national security. It is important to prioritize the protection of citizen privacy and ensure that government actions are within legal bounds.
By reporting the discussion on the government's invasion of citizen privacy, the DHS Insider Threat Program can investigate any potential breaches or misconduct, and take appropriate steps to address the issue and protect the rights of citizens.