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In page Nuclear power debate:

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Nuclear waste disposal is one of the most controversial facets of the nuclear power debate. Presently, waste is mainly stored at individual reactor sites and there are over 430 locations around the world where radioactive material continues to accumulate.[citation needed] Experts agree that centralized underground repositories which are well-managed, guarded, and monitored, would be a vast improvement.[16] There is an international consensus on the advisability of storing nuclear waste in deep underground repositories,[17] but no country in the world has yet opened such a site as of 2009.[17][18][19][20] There are dedicated waste storage sites at the Waste Isolation Pilot Plant in New Mexico and two in German salt mines, the Morsleben Repository and the Schacht Asse II.