"In 2002, which Secretary of Defence explained about ""known knowns"", ""known unknowns"" and ""unknown unknowns"" in a speech referring to terrorism?"
Don Rumsfeld Donald Rumsfield Donald Ramsfeld Rumsfield Don Henry Rumsfeld DONALD RUMSFELD Donald rumsfeld David Rumsfeld Donald Rumpsfeld Secretary Rumsfeld Donald Henry Rumsfeld Ramsfeld Donald Henry Rumsfield Donald Rumsfeld Donald H. Rumsfeld D.H. Rumsfeld Rumsfeldian
rumsfield donald henry rumsfeld david rumsfeld donald henry rumsfield donald rumsfeld ramsfeld secretary rumsfeld d h rumsfeld donald rumsfield don henry rumsfeld don rumsfeld donald rumpsfeld donald h rumsfeld donald ramsfeld rumsfeldian
donald rumsfeld
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DONALD RUMSFELD