GERHARD SCHRÖDER, the normally laid-back German chancellor, has been driven purple with rage by claims that he dyes his hair to cover up greying temples.Mr Schröder, an urbane 57-year-old whose youthful looks appeal to many female voters, has taken the extraordinary step of threatening injunctions against anyone who repeats the allegation.First, the mass circulation Bild newspaper carried an article noting mischievously that Mr Schröder, who has jet black hair, appeared "very modern" compared with other, greying politicians.Then Sabine Schwind von Eggelstein, an image adviser, told the DDP news agency: "It would enhance his persuasiveness if he were not tingeing his ...