Last year fewer houses were started than in any peacetime yearsince the 1920s. According to one estimate, we will be half-a-million homes short in five years time. Is the housing programme -new building and renovation-being cut back too far and too fast? Steve Bradshaw reports for Newsweek on the crisis in housing and asks, will we have a new generation of homeless in 1984? Deputy editor PETER KENYATTA Editor PETER IBBOTSON