曾于1969年登上月球的国家航空和航宇局(NASA)前宇航员Aldrin对众院小组委员会说,福莱柴尔(Fietcher)委员会已得出结论,月球岩石和尘埃可用作低环地轨道上弹道导弹防御系统的有效屏蔽。 Aldrin, the former NASA astronaut who had landed on the moon in 1969, told the House Subcommittee that the Fietcher committee had concluded that lunar rock and dust could be used as low-ring Effective shielding of ballistic missile defense system on orbit.