The famous American psychic Edgar Cayce gave life readings "to help individuals understand and answer the questions to problems they might have in their present lifetimes.

"In the case of people with past incarnations in Atlantis, the problems have a special urgency, both for the people themselves and the world at large. According to Cayce, many people who lived in Atlantis were active, influential, and capable individuals. These Atlanteans are incarnating again into the world today. Because their influence on world civilization was so great in the past, it is likely they may once again greatly influence world events.

"Cayce expressed that thought this way: 'Be it true that there is the fact of reincarnation, and that souls that once occupied such an environ [Atlantis] are entering the earth's sphere and inhabiting individuals in the present, is it any wonder that - if they made such alterations in the affairs of the earth in their day, as to bring destruction upon themselves -if they are entering now, they might make changes in the affairs of peoples and individuals in the present?' (no. 364-1, February 3, 1932). And elsewhere: 'We meet few people by chance, but all are opportunities in one experience or another. We are due them or they are due us certain considerations' (no. 3246-1. September 28, 1943).

"If what Cayce said is true, many of our problems with others' may be left over from some past experience. If they are not solved now, they may well return to haunt us in future incarnations. Carrying this thought a step farther, if many individuals who had incarnations in Atlantis are returning to earth now, they may be returning to the same problems that caused such turmoil in Atlantis.

"It is not too difficult to draw parallels between the Atlantean civilization described by Edgar Cayce and that of the United States today. Both developed a highly technical society. Both were world powers, and both were plagued with racial or social problems. Both developed weaponry that, if misused could destroy their own country and even affect world climate.

"In Atlantis, the worst happened -not once, but on three different occasions, the last resulting in the final destruction and sinking of the country. It is little wonder that many of the life readings that gave Atlantean incarnations were filled with warnings to individuals about the misuse of their abilities. Individuals who had misused their talents once before might easily follow the path of least resistance and misuse them again.

"Not everyone who lived in Atlantis was a 'bad guy.' Many of the incarnations there were depicted as ones where the individuals had 'gained,' as Cayce put it, or had improved their understanding of their relationship to God and others. Certainly one message of the life readings is that it is possible to live a constructive life under any circumstances.

"How could such a technically advanced civilization have existed as recently as 12,000 years ago and as long as 50,000 years ago, and simply have vanished without a trace? Perhaps there are traces, and we haven't looked for them in the right places. Archaeological work is expensive and time consuming. It does not concern the public as much as who will win the World Series or the Super Bowl. It does not receive a fraction of the support our government gives the defense budget.

"How could an advanced civilization vanish? Think a moment. The more technically advanced a civilization is, the easier it is to destroy. Suppose the United States were to sink into the sea. Suppose the survivors had to flee to remote areas, such as the headwaters of the Amazon, or the heart of Africa, where people live very primitively. The survivors could not take their four-wheel-drive trucks with them; there would be no roads and no fuel. Their radios and TVs would be useless without broadcasting stations. Without credit cards and supermarkets, the majority would have difficulty surviving the first year. Those who did survive would do so by adapting to a life very much like that of the natives of the land to which they came. After a few hundred years, only legends of their homeland would remain. After 12,000 years, it is unlikely that any trace of them could be found."

Excerpts from _Mysteries of Atlantis Revisted_ written by Edgar Evans Cayce pgs. 24-25,54-55

To add to what Edgar Cayce's son has written, most materials aside from stone will completely break down relatively quickly -within hundreds or a few thousand years (depending on the substance), and what's left is deeply buried both on land and under sediment on the seafloor, but there are some archeological traces of " the gods", in astronimicallly-aligned megalithic constructions, and the records of Atlantis await recovery in ancient, hidden vaults.

The USA is indeed "Atlantis IV" reincarnated, and the rapid advances in technology are largely a superconscious remembering of what was once possessed in the ancient past.  This helps to explain how we went from carts and livestock used for some seventy consecutive centuries to spacecraft in one century. [Of course we are still burning fossil fuels a century later thanks to economic/political corruption erecting barriers to cleaner alternatives.]

Western society is reworking a national karma associated with the reincarnation of the imperial faction from Atlantis which Cayce called "The Sons of Belial" (S.O.B.s). They were/are greedy, spiritually-barren, war-like materialists entrenched in corrupt power structures, and only concerned with selfish desires, gratification of the senses and material comforts at the expense of the rest of the world, its people and the environment. These beings are responsible for incurring the wrath of nature  -all over again- on the metaphysical level by pursuing foolish, myopic agendas motivated by greed and control issues. Some of these S.O.B.s will awaken and turn over new leaves as disasters escalate, but many will perish clinging to their possessions and mistaken beliefs - as they did before. 

There is still a chance to prevent a lot of unnecessary misery and suffering, to foster awareness of the cyclical patterns of nature, civilizations and empires and, history doesn't have to repeat itself provided enough people pull their heads out of their rear ends and make better decisions.