Radu was, according to Ion Mihai Pacepa, a radiological weapon used against dissenters and critics by Nicolae Ceauşescu's Securitate. "Radu" is a Romanian name and in this context it is a reference to "radiation". The weapon was intended to lead to cancer which would result in death within months after the exposure. Critics of Ceauşescu who died of cancer and are suspected to have been irradiated by the Securitatea include: