“To obtain likely less than 30 minutes of testimony from overseas FTX customer witnesses, however, requires, for at least some countries, coordinating with local authorities, arranging multi-day travel itineraries to accommodate varying time changes and travel delays, and incurring significant costs associated with such arrangements. Notwithstanding those hurdles, the Government is in the process of arranging for some overseas FTX customers to travel to New York to testify,” the letter said.