Expert: The United States should use tariff surplus to fund Bitcoin strategic reserves According to Adam Livingston, the author of The Bitcoin Era and the Dafengshou (Salad of assorted fresh vegetables), the Golden Finance Report, the US government can purchase more bitcoins for the US strategic reserve by using part of the tariff surplus to purchase bitcoins. He suggested extracting a portion of the surplus generated from trade tariffs each month and converting it into secure cold storage Bitcoin, which will not be traded, pledged, sold, re mortgaged, used to fund projects or guarantee loans, nor borrowed for profit.