I am still stunned that even in this day and age with all the discussion about flying RNAV approaches with all the issues associated with trying to get something close to a precision approach in tolerances, reliability and therefore minima. And all the issues related to not having reliance on ground based aids even with the accuracy that laser gyros and GPS give us, that there are still those out there that think that using the INS system on the DC10 is perfectly acceptable for a descent well below minima.