out who dreamed up 'P22 horizon test'; that is a beauty also." A further source of tension between Mission Control and the crew was that Schirra repeatedly expressed the view that the reentry should be conducted with their helmets off. He perceived a risk that their eardrums might burst due to the sinus pressure from their colds, and they wanted to be able to pinch their noses and blow to equalize the pressure as it increased during reentry. This would have been impossible wearing the helmets. Over several days, Schirra refused advice from the ground that the helmets should be worn, stating it was his prerogative as commander to decide this, though Slayton warned him he would have to answer for it after the flight. Schirra stated in 1994, "In this case I had a cold, and I'd had enough discussion with the ground, and I didn't have much more time to talk about whether we would put the helmet on or off. I said, essentially, I'm on board, I'm commanding. They could wear all the black armbands they wanted if I was lost or if I lost my hearing. But I had the responsibility for getting through the mission." No helmets were worn during the entry. Director of Flight Operations Christopher C. Kraft demanded an explanation for what he believed was Schirra's insubordination from the CAPCOM, Stafford. Kraft later said, "Schirra was exercising his commander’s right to have the last word, and that was that." Apollo 7 splashed down without incident at 11:11:48 UTC on October 22, 1968, SSW of Bermuda and north of the recovery ship USS Essex. The mission's duration was 10days, 20hours, 9minutes and 3seconds. Assessment and aftermath After the mission, NASA awarded Schirra, Eisele and Cunningham its Exceptional Service Medal in recognition of their success. On November 2, 1968, President Lyndon Johnson held a ceremony at the LBJ Ranch in Johnson City, Texas, to present the astronauts with the medals. He also presented NASA's highest honor, the Distinguished Service Medal, to recently retired NASA administrator James E. Webb, for his "outstanding leadership of America's space program" since the beginning of Apollo. Johnson also invited the crew to the White House, and they went there in December 1968. Despite the difficulties between the crew and Mission Control, the mission successfully met its objectives to verify the Apollo command and service module's flightworthiness, allowing Apollo8's flight to