Isaacman also highlighted a push to rebuild NASA's workforce, shifting some key roles from contractors — who today make up about 75 percent of the agency's technical labor — back to in-house expertise. NASA leaders say that will give them more control over launch preparations, as it did in the Apollo and space shuttle eras.
It emerged this week that Zimbabwe had halted negotiations with the US for $350m (£258m) of health funding, saying the proposals risked undermining its sovereignty and independence.
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