Holland Cotter of The New York Times on the opening of the September 11 Memorial Museum:

Still, within its narrow perspective, maybe because of it, the museum has done something powerful. And, fortunately, it seems to regard itself as a work in progress, involved in investigation, not summation. I hope so. If it stops growing and freezes its narrative, it will become, however affecting, just another Sept. 11 artifact. If it tackles the reality that its story is as much about global politics as about architecture, about a bellicose epoch as much as about a violent event, it could deepen all our thinking about politics, morality and devotion.