Should governments ban tech surveillance companies like Palantir from public contracts?

Context

Palantir Technologies is a data analytics company that has secured billions in government contracts for surveillance and intelligence work, raising questions about whether firms specializing in mass data collection should participate in public procurement. The debate centers on balancing national security needs against privacy concerns and the risks of concentrating surveillance power in private hands. Recent government decisions to both expand and, in some cases, replace Palantir systems have intensified the discussion about appropriate oversight and accountability.