Although Errol Morris's film takes us through the nasty dramas behind various wars, few of McNamara's clarifications come as a surprise. Of course Vietnam should not have happened as it did, of course military chiefs often behave like war criminals. More interesting are the brief, taped telephone conversations between Kennedy, McNamara and Johnson. Kennedy listens, Johnson gabbles. Kennedy has an internal focal point, a flicker in the depths, while Johnson admits to being "scared" and "terrified". And on the other end of the telephone is McNamara, polite and quiet, as