**"Toxic Allegations: El-Rufai, the ONSA, and a Daring Challenge"** In a recent development, the Office of the National Security Adviser, led by Nuhu Ribadu, has thrown down the gauntlet to former Kaduna State Governor, Nasir El-Rufai, challenging him to provide evidence of alleged toxic chemical procurement. The controversy centers around thallium sulphate, a highly toxic and odorless compound that can be deadly in small doses. El-Rufai had accused the ONSA of sourcing this hazardous material from a Polish supplier, sparking demands for clarification. However, the ONSA has denied these allegations, asking El-Rufai to submit any evidence he might have to the Department of State Services (DSS) for a thorough investigation. The ONSA's response, signed by Brigadier-General OM Adesuyi, was initially rejected by security operatives at El-Rufai's Abuja address. However, it was eventually delivered on Sunday, with the head of security signing for El-Rufai's receipt. The response, dated February 13, 2026, categorically denied the ONSA's involvement in the alleged procurement and referred the matter to the DSS for investigation. As the controversy unfolds, Nigerians are left wondering what the implications might be. Could this be a case of a desperate attempt by the opposition to tarnish the image of the ONSA? Or is there truth to El-Rufai's allegations, and the ONSA is trying to cover its tracks? Whatever the case, the DSS's investigation will likely provide the answers. For now, the ball is in El-Rufai's court. Will he take up the ONSA's challenge and provide the evidence he claims to have? Or will he continue to make unsubstantiated allegations? The nation watches with bated breath as this high-stakes drama unfolds. In a country where corruption and toxic politics often go hand-in-hand, this controversy serves as a stark reminder of the need for transparency and accountability. As the truth begins to unravel, one thing is certain: only a thorough investigation will reveal the facts and put this toxic saga to rest.