In 2008, journalist Christopher Ketcham reported for Radar on Main Core, described by a former senior government official as a database of Americans considered unfriendly, potentially eight million names, originating in the 1980s continuity-of-government exercises run with Oliver North's participation. North had used PROMIS-based systems at the National Security Council for domestic emergency planning. The government has never officially confirmed the database's existence; no official has denied it under oath either.
The continuity exercises, Rex 84 and successors, imagined mass detention of dissenters after a national emergency. Main Core, per the reporting, converted that scenario into standing infrastructure: names, associations, locations, kept current by data the state already collects. The scenario never needed to activate; the list merely needed to exist, quietly, as the filing cabinet version of the emergency powers that were never repealed.
The claim: Main Core is the bridge from PROMIS to Palantir, the moment surveillance stopped being about what people did and became about what they might do, a database of pre-dissidents. Verdict: conceptually it is the same architecture later programs admitted to building, and the through-line Webb draws is the strongest part of her final chapter. Whether the original list persisted or was rebuilt from scratch every decade is, for the listed, a distinction without a difference.
Who maintains the list of who goes on the list?