SCMP science reporter Victoria Bela speaks of the science behind China and Russia's opposition to the Fukushima water release plan and how it compares to the tritium water releases from Chinese nuclear power plants. Mimi Lau from HKU AnnieLab factcheck newsroom analyses the state-led social media campaign fusing anti-Japanese hatred with misinformation and pseudo-science, leading to panic buying of salt in mainland China and Hong Kong.