JFK invited Glenn to explain delays   This dubious footnote was just added a frustrated politician compared the spacecraftAtlas combination to a Rube Goldberg device on top of a plumbers nightmare and John Glenn was invited to the White House to explain the delays  This New Ocean verifies the senators remark but makes it clear that JFK while disappointed like everyone else believed NASA knew best what was required to make the flight with reasonable safety and describes Glenns February visit incidental to his visiting family in Virginia as a brief visit with President Kennedy who asked him many semitechnical questions about plans and systems for the orbital flight citing several newspaper reports but says nothing at all about Kennedy demanding Glenn explain delays This would seem totally out of character for JFK I removed it I have no idea who this Brit John Catchpole is but I would suggest being cautious about regarding his Project Mercury  NASAs First Manned Space Programme as a reliable source about certain things