Documents leaked by NASA engineers show that the agency's own calculations predict a greater safety hazard on ISS flights than Hubble missions. This directly contradicts statements made by Administrator O'Keefe that the agency had evaluated Hubble missions as substantitally more dangerous. The "Hubble missions are too risky" line had been used by Mr. O'Keefe as the rationale for abandoning missions to the space telescope while continuing flights to the ISS. Only two Shuttle flights to Hubble (one in 2005 or 2006 and one circa 2010) are needed to make the space telescope operational through the year 2015. Over twenty Shuttle flights are needed to complete the ISS.