Not to put too fine a point on it, but the Soviet/Russian space program has a much better track record than the US: the US accounts for 15 of 19 spaceflight fatalities, and 9 of 11 training or test fatalities (including 1 for Virgin, not NASA).
https://en.wikipedia.org/wiki/List_of_spaceflight-related_ac...
In fairness, the US has flown around 2.5x more people into space, but the Soyuz also ferried a whole lot of them up and down.