It's true that double pane insulated glass such as you see in houses and offices these days can break if transported by air. Pressure differentials can also form as the window heats up. Valves are sometimes incorporated into the seal between panes to allow the pressure to equalize.

Back on topic, strictly speaking...
I'm a big fan of the Niemann blog. For those who are not familiar with it I suggest taking time to view some of his older posts as well.