[TXnMA]

While it is possible that break in the glass in your photo was initiated by a mounting pressure point (over-tightened screw?) it is obvious that it traveled a long distance after being broken. (Note the glass dust from the crack edges rubbing against each other, and the out-of-plane shifting of some pieces.)

I bet Apple will trace the problem right back to the factory -- or their shipping dock.

That's a big slab of glass to be shipping internationally. If I were Apple's packaging engineer, I would contact my counterparts at the manufacturers of big flat-panel TVs to find out how they package for shipment... Or, just buy a few TVs and reverse-engineer the packaging...

[antiRepublicrat]

is possible that break in the glass in your photo was initiated by a mounting pressure point (over-tightened screw?)

IIRC, the glass is held on by magnets, as you only need a couple suction cups to lift it right off. The LCD behind the glass is held on by screws.