From
Search and Recovery Operation for MH370 :
At the moment we have some 550 personnel on this base involved in the search ... today we'll have more than 100 people in the air ...We'll have just on 1000 sailors in the area looking for debris.
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Is there a point, though, that things start to be scaled back? ... If nothing of substance is found, obviously such a point is eventually reached, but we are well short of that point
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Do you have a certain time? ... I'm certainly not putting a time limit on it.
Appears to be large numbers! Major means? It could be a sign that, without excluding suicide or accident, a highjack is feared and there is no evident clue to how it was made: Clearly the worst scenario, and perhaps no pings for the next one... The wreck has to be retrieved!