The Department of Homeland Security's primary function is the prevention of terrorist attacks occurring within America and, in the extreme case of an attack happening, holding losses to the smallest possible level and swiftly carrying out restoration
In a fight against speculators who are dumping the U.S. currency, central banks of major countries have carried out massive concerted interventions in the market
In regard to the internship system in the United States I availed myself of part of Miyumi Tanaka's work "Making doctors in Harvard" (Igaku-Shoin Ltd.) as a reference