translation.en: I'd prefer to quote someone else, who testified with me before Congress, and in his position as head of NASA put forward this particular vision of the future of this type of aircraft.
translation.zh: 我得引用别人的话来回答这个问题。 这个人和我一起在国会参加过听证会， 他当时是国家航空和宇宙航行局局长。 他也预见 飞天车将是未来的发展趋势。