Which organization would you call if you were involved in a natural disaster? homeland security federal aviation administration american red cross march of dimes

I would call Homeland Security. Their duties are not just about preventing terrorist activities but also preventing man-made and natural disasters as well.  They respond to large scale emergencies as part of their mandate to protect the U.S. and its territories from threats that are either man-made or natural in nature.

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the use of electrical signals that transit messages is know as