Message present in many places of the country. The tourists are not allowed to travel in many places for various reasons. In the northern area it was a small war with people fighting against the government. In others you are allowed to go only with government tours. They make sure you don't see what shouldn't be seen like human rights not being respected or drug plantations. There are also some areas where you can go only by flying or completely closed regions to foreigners. Nevertheless, all areas where you are allowed to go are very safe.