Prepared Statement by Michael Griffin 8 May 2003 (part 2)
"The base reliability of unmanned expendable vehicles seems to arouse concerns where that of the manned Shuttle system inexplicably does not. Many, if not most, unmanned payloads are of very high value, both for the importance of their mission, as well as in simple economic terms. The relevant question may be posed quite simplistically: What, precisely, are the precautions that we would take to safeguard a human crew that we would deliberately omit when launching, say, a billion-dollar Mars Exploration Rover (MER) mission? The answer is, of course, "none". While we appropriately value human life very highly, the investment we make in most unmanned missions is quite sufficient to capture our full attention."
Testimony of Dr. Michael Griffin before the House Committee on Science, 27 October 1999
"We envision this Space Taxi to be industry owned and operated; however, the cost of development, production, and operation of the Space Taxi System would be paid for predominantly out of government funds because it satisfies unique NASA needs that are not currently aligned with those of commercial industry. The launching of this Space Taxi System, however, could be competed among commercial RLV or EELV suppliers that meet the cost and safety requirements. These future RLVs would be commercially developed with private capital and would be commercially owned and operated. Their development will be enabled by NASA's current and planned future investments in RLV technologies and could be enhanced by government-backed financial incentives, such as tax credits, loan guarantees or advanced purchase agreements. Once a truly commercial Space Station becomes operational or the current Space Station becomes sufficiently commercialized, NASA and industry launch needs will be in almost complete alignment, and a completely commercial Space Taxi may become a viable business opportunity. We strongly believe that industry ownership of the Space Taxi from initial operation is critical to enable the eventual development of such a commercial Space Station."