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Analysts explain that large metropolitan areas often appear in these discussions because of their complex infrastructure. Cities with major airports, seaports, government institutions, or financial centers tend to handle enormous daily flows of people and goods. While these characteristics make them vital to national and global economies, they can also create logistical challenges if an unexpected disruption occurs. For example, transportation networks, supply chains, and emergency services in densely populated areas may experience greater pressure during sudden events compared to smaller communities.
