Hey, can you shoot me that link when you get a chance?
From what research I've done into the Lockheed-Martin project, there seems to be some deliberate ambiguity built in to the technical information that has so far been released. Which makes sense from an intellectual property perspective. It doesn't help us from an is-this-another-military-industrial-complex-boondoggle perspective, though.
It looks as though the containment configuration they have can work, perhaps with a small amount of leakage, but I still don't see how they're going to make it all work at the proposed scale. The magnets will have to be shielded from the neutron flux, and the only way you can stop neutrons is with thick masses of water, lithium, or beryllium. There just isn't space for that in the diagram.