When Japanese is great, when Japanese is bad?

It would seem that the nuclear meltdown risk is gradually tapering down with positive hope in sight.  However, the effects of the fall-out is still propagating.  Restaurants which branded their Japanese heritage were often seen as up-market.  But right now, the same branding is probably a death knell.  Japanese restaurants are experiencing an immense sense of emptiness with no customer in sight.  Perhaps, it is now the optimal time for these restaurants to do whatever major maintenance work needed and wait out this period of fear for all things Japanese.  Will these companies survive the drought in business?