I strongly believe that the government keeps secrets and covers up a lot of event = events. One reason is the corruption related to money and powerr = power. Politics is a complicated matter, but we can say that it is the = a system of controlling the country. Controlling something means it has a power. That's why corruptions occur. Most of countries chose democracy at this moment. democracy = Democracy is not perfect, so corruption must be with some of = is done by some polticians and government officers. Those people have been trying to hide the truth. Another reason is that the government has a poor excuse that the reason of hiding = hides the truth is to prevent the chaos in a society. Government = The government wants to control a country its own way So = so, they think people don't have to know everything. It is easier way to control others than showing up the every truth = them all truths.