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b'As Richard Grenell, the current US ambassador to Germany, starts his second day on the job as the nation\\u2019s acting director of national intelligence, his arrival also marks the ouster of not only his predecessor, Joseph Maguire, but reportedly also of DNI principle executive Andrew Hallman. By the end of the day, almost all of the roles created after 9/11 literally to prevent the next 9/11 will be either vacant or lack permanent appointees.\\nLearn more about your ad choices. Visit podcastchoices.com/adchoices'