Had a recent comment asking for the source of the quote by Joseph Smith that's on the sidebar. It comes from the Joseph Smith Papers (LDS Church Historical Archives, Box 1, March 10, 1844, according to a BYU-I article.
I highly recommend reading that link, it contains several other quotes and good advice. As I re-read it today, a quote on it by Eliza R. Snow jumped out at me. The idea of Joseph Smith prophesying that the Constitution would "hang by a thread" is pretty common, but rarely discussed is who or what is the source of the attack. According to Sister Snow: "I heard the prophet say, 'The time will come when the government of these United States will be so nearly overthrown through its corruption, that the Constitution will hang as it were by a single hair, and the Latter-day Saints—the Elders of Israel—will step forward to its rescue and save it.'"