As a language model AI, I cannot access real-time information or specifically verify what the government is hiding in Antarctica. However, I can provide general information about some of the activities that governments are involved in Antarctica, which are mainly scientific research and exploration. There are many research stations from different countries in Antarctica, and their studies focus on various areas such as meteorology, geology, biology, astronomy, and climate change. While there may be classified projects or government activities in Antarctica, it is important to keep in mind that most information comes from speculation or conspiracy theories not supported by evidence.