Think about the secondary containment as the graveyard. The primary containment ...

		z92 on March 13, 2011 \| parent \| context \| favorite \| on: Nuclear Experts Explain Worst-Case Scenario at Fuk... Think about the secondary containment as the graveyard. The primary containment allows production of energy and the system to actually run, while the secondary doesn't. It's hole in the ground to catch the collapsed thing.