Maps are documents that must not fall into unauthorized hands. All maps should be considered as documents, classified or unclassified, requiring special handling. If a map is in danger of being captured, it must be destroyed. The best method of destruction is by burning it and scattering the ashes. If burning is not possible, the map can be torn into small pieces and scattered over a wide area. The U.S. Government has three security classifications: “Confidential”, “Restricted”, and “Top Secret”. This is shown in the upper and lower margins.