Ok so you could Read the question then go onto the text and find the information that answers it or is related to it hope this helps!
Answer: A domestic issue that the U.S primarily focuses on is the economy. If the economy goes too low that can put us all in jeopardy. As we have seen during the coronavirus pandemic the economy sinking lower is just as bad as the Great Depression was so many years ago. A low economy means weakness in our country. Also, many people can lose their jobs, like right now, if the economy does not get better.
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It would send electrical currents that turned into sound through connected wires that were like a language of sorts so people could communicate with each other.
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*insert random image of telegraph*