The Department of Homeland Security. Right after the 9/11 attack, the central government moved rapidly to build up a security structure to shield our nation from vast scale assaults coordinated from abroad, while upgrading elected, state, and nearby abilities to plan for, react to, and recuperate from dangers and fiascos at home.
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Answer: Because they had never developed immunities to the disease
The practice of vertical integration contributed most to Andrew Carnegie's ability to form a monopoly. Vertical integration is a process of combining different stages of production such as manufacturing, supplying, distributing, retailing, etc, under the umbrella of one company.