And it seemed to me looking at that -- that tower burning and then falling, those towers burning and falling -- that in fact, one of the lessons here was that density kills.
燃え上がり崩れ落ちたビルを見て― 二つのタワーが燃え上がり 崩壊して 実際に人が集中していると 死者が多数出ることが分かりました