Fletcher asked astronauts still with NASA, and even those who were not, such as Apollo 7's Wally Schirra, to turn in all flown covers in their possession to NASA pending a determination of whether they were government property. Kraft related that there was resistance from astronauts, but "we confiscated them, sometimes under duress". These covers were returned when the Justice Department chose to take no action, "and whatever happened to them was kept quiet". Among the astronauts interviewed in NASA's investigation was Apollo 13's Jack Swigert, who denied any dealings with envelopes; after he subsequently admitted he had, Low removed him from Apollo-Soyuz.