How Little We Know By John Corry Published 4/4/2003 12:38:00 AM Say this about Richard Perle: He is not hobbled by inconsistencies, and he keeps his eye on the big picture. Perle, who stepped down recently as chairman of the Defense Policy Board after allegations he had a conflict of interest, although he will still remain on the board, is a longtime advocate of regime change in the Middle East: Iraq today, and Syria and Saudi Arabia tomorrow. The precise ways of doing this, however, have been unclear, and to Perle and his like-minded colleagues they seem to be irrelevant....