Trustees and Company Stock in Qualified Plans

Any of you guys work in a ERISA-related capacity? How would someone working as Discretionary Trustee on company stock in a qualified plan determine a stock’s suitability under the “going concern standard” for a company like AIG? Clearly, without the government propping it FAILS the going concern standard but with it, the company is still able to function and the stock still has a bit of market value. AIG is an extreme case but many companies will likely be forced to take more government money. I guess my question is, how can we make a determination under the going concern standard (which is the only relevant standard under ERISA) if the government appears to be standing ready to prop these companies up indefinately?