Betty
Reading other posts on this, it seems that MPAs are incapable of detecting 37.5khz pingers - it's not exactly rocket science to give them this capability, is it? So all of this crowing over a lack of airborne LRSAR and there is no capability to detect one of the aircraft's primary location aids following an accident suggests that there are others with "skewed universes".
I agree with Leon, the MPAs have not contributed much in this search at all. It has been 'overhead' satellites and ships with hydraphones that have proved their worth. It's hard to argue otherwise in this particular tragedy.
The B Word