There were similarities between these two incidents. The similarity was too much success … over-confidence and complacency, quite frankly.
Discussing the 1967 Apollo 1 fire and 1986 Space Shuttle Challenger disaster incidents — reported in The Deseret News staff (May 7, 1995) "Even Cosmos Is Aghast at Size of Earthly Egos", The Deseret News, p. A2.