First, that site does not exist.
Second, how can a volcanic eruption be staged? Did the Romans built a second city and bury, along with the artifacts and bodies that have been recovered from the wreckage?
Or do you mean that the Romans triggered the eruption of Vesuvius? Even today, we would have difficulty triggering an eruption, especially if we hoped to keep control.
And how would they trigger an eruption? The Romans had no explosives. Getting siege machinery onto the mountain in secret would have been impossible. If they tried to take iron bars to pry rocks lose, they they never would have made it. Ground temperature near the rim was several hundred degrees. Roman soldiers, wearing sandals or other crude footwear, would have suffered such terrible burns on their feet that they could not have continued. They probably would have fallen and died. Even if their feet did not give out, the air temperature and the gases escaping the crater would have killed anyone approaching it.
So perhaps you mean that the Romans built a town that became the favorite getaway spot for the rich and famous, knowing that there would be an eruption. The Romans had no instruments of any sort, and would have relied primarily on the reports of their augurs to foresee the future based on the entrails of a sacrificed bird. While the bird entrails may show the mood of the gods, the notion that they could predict volcanic activity is absurd.
In other words, there is no credible evidence that the destruction of Pompeii was somehow "staged."
Finally, you suggest that the American government bombed Pearl Harbor. This goes far beyond conspiracy theories suggesting that President Roosevelt and others high up in the Administration knew that the Japanese were coming and deliberately allowed the attack to occur in order to inflame public passions in order to get the country to go to war. I have reviewed several of these conventional conspiracy claims, and found that none of them withstand scrutiny. The reasoning in these claims goes along this line: there is a great deal of data in the government records. Among these data are bits and pieces which, if meticulously arranged and considered entirely in isolation and without taking into account any other evidence, can be read as showing that someone might have been able to foresee the Japanese attack. From this, these conspiracy buffs reason that (1) officials did foresee the attack on Pearl Harbor, and (2) they failed to bring their discovery to light in time to prevent the attack or lessen its impact because they were part of a conspiracy that wanted the attack to occur.
You go much further, suggesting that the Japanese did not attack Pearl Harbor; that it was an American attack. This is absurd. Where would the conspirators have gotten all of the Japanese planes with which to stage the attack? American defenders shot down 29 Japanese planes, and many more would have been needed because there was no way to predict which planes would go down, and the wrecks had to be Japanese. Further, any bodies that were recovered had to be Japanese, and again, there was no way of knowing which pilots would die.
Next, where could these planes have come from? Radar tracked the incoming planes approaching Oahu from the northwest, and there are no land formations in that direction until one reaches California, which was far beyond the flying range of the type of aircraft involved, American or Japanese. There appear to be only two alternatives: carriers, or a secret base on one of the other islands in the Hawaiian group. If it was a secret base, how has it remained undiscovered for 70 years? If it was a carrier strike, how did the multiple carriers keep the mission secret? (No single carrier could launch 250 aircraft.
And how can anyone explain the millions of bits of data in Japanese archives showing that the Japanese carried out the attack, not the Americans? They claimed credit for it. They had sailed a huge battle fleet toward Hawaii for the express purpose of attacking Pearl Harbor. They created an unmatched record of their attack. Why would they boast of the attack while the guilty Americans remained silent forever?
A conspiracy of this sort would involve thousands of people. It could not be pulled off without an impossibly difficult covereup. It did not happen.