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Gold Codes are generated daily and provided by the National Security Agency (NSA) to the White House, The Pentagon, United States Strategic Command and TACAMO. For an extra level of security, the list of codes on the card includes codes that have no meaning, and therefore the president must memorize where on the list the correct code is located.
A Gold code, also known as Gold sequence, is a type of binary sequence, used in telecommunications [1] and satellite navigation . [2] Gold codes are named after Robert Gold. [ 3 ] [ 4 ] Gold codes have bounded small cross-correlations within a set, which is useful when multiple devices are broadcasting in the same frequency range.
Later versions used five numbers, so that the access code could be divided between two people, each of whom would only know half of the sequence with a commonly known number in between. A: 4: Electromechanical switches designed for ballistic missiles. The four-digit code was entered into the weapon using a portable electronic device. B: 4
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From Exodus onward, the expansion symbols are also color-coded to denote rarity: black for common and basic land cards, silver for uncommon, and gold for rare. Beginning with the Shards of Alara set, a red-orange expansion symbol denotes a new rarity: "Mythic Rare" (the Time Spiral set featured an additional purple coloration for "timeshifted ...
This is an incomplete list of U.S. Department of Defense code names primarily the two-word series variety. Officially, Arkin (2005) says that there are three types of code name : Nicknames – a combination of two separate unassociated and unclassified words (e.g. Polo and Step) assigned to represent a specific program, special access program ...
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9 Nuclear-defense policy expert Franklin Miller states that the president has almost single authority to initiate a nuclear attack and the secretary of defense is required to verify the order, he or she cannot legally veto it.