Victorious Sarkozy pledges unity

France's new President-elect Nicolas Sarkozy has called for unity after a bitterly-contested campaign. --- Mr Sarkozy, 52, the son of a Hungarian immigrant, won enemies as interior minister for his harsh condemnation of rioters during urban unrest two years ago. --- Now set to take over from 74-year-old President Jacques Chirac, he struck a conciliatory tone in his victory speech.