Asked by the Guardian in November in Tehran what cost benefit analysis could possibly conclude that the nuclear programme was a worthwhile project, the foreign minister, Abbas Araghchi, referred to Iran's sovereign right under the nuclear non-proliferation treaty, the medical benefits, and the blood of past assassinated Iranian nuclear scientists. He suggested a compromise whereby a consortium including possibly the US could enrich uranium in Iran, but insisted the principle that uranium would be enriched inside Iran remained sacrosanct.