Former Vermont Gov. Howard Dean questioned John Kerry's judgment because of the Massachusetts senator's stance on the two wars against Iraq, while Kerry hinted Dean was being hypocritical, running a negative campaign while urging other candidates to keep it clean.

CNN: Democrats fire shots in final New Hampshire push

They questioned the dean of the university about his staff and their research programmes - but he refused their demand for a private interview, the first of its kind, Mr Amin said.

BBC: Iraq: UN finds no banned weapons