Reuters: Ahmed Dogan, the long-time leader of the Movement for Rights and Freedoms (MRF) escaped unscathed, and it was not immediately clear why the attacker had targeted him at the party congress in downtown Sofia.Television footage showed the man jumping out of the audience and interrupting a speech by 58-year-old Dogan, who has led the party for almost a quarter of a century. Security guards were seen beating and kicking the attacker.