The North came out in relatively good condition. This is speculated to be due to the war being fought mostly in the south and that the north won, and when you see how the south was left in shambles, you can assume that the North was having a great time post-civil war.
Polytheism is the answer.
There were several features that helped industries grow quickly in the country after the Civil War. There was massive influx of immigrants and so there was no dearth of labor force. Also there was great improvement regarding new inventions and technological advancements. There was also great availability of raw materials like timber, oil etc.
It was part of the muckraking trend in journalism and helped to keep that going. It also showed people how progressive activism could bring about change. Since, "The Jungle" did bring about reform by the Federal government.
Answer:
The field of national security safeguards against such threats. National security protects not only citizens but also the economic stability of national institutions. In the U.S., national defense has been a guiding principle of the government at least since 1947, when then-President Harry S. Truman signed into law the National Security Act. Among other things, this legislation created the secretary of defense cabinet position, under whose leadership all branches of the military operated.