We work together how long does 1 antabuse stay in your system For some time, Young had been critical that NASA's Space Shuttle program was not "proceeding with a conservative enough operating approach," he wrote in a Jan. 4, 1984 memo. He called such an attitude "irresponsible," and specifically addressed the solid rocket motor rings, saying: "If this problem is not fixed, sooner or later, it could be one of the factors in a catastrophy (sic)."