Rwanda commemorates the the 29th anniversary of the 1994 genocide against the Tutsis. This morning, as every year, an official ceremony, organized at the Gisozi National Memorial in Kigali, marks the beginning of the 100 days of commemoration. "I thank all of you for refusing to be defined by this tragic history" says the President Paul Kagamé, who speaks at the event. IMAGES AND SOUNDBITES