"Given that a few days ago we had a terrible accident, a tragic terrorist attack in Barajas, in Madrid, I would like to propose to you that we show our complete condemnation, our most intense revulsion, and that we show profound solidarity with the victims."
Source, in full
Note: In reference to the ETA bombing at Madrid airport, El Confidencial (Spanish). That same day, Zapatero said that calling the attack an 'accident' had been a slip of the tongue, but it was seized by the press and provoked anger, for example the slogan "Killing people is not an accident" used in the protests of March, 2007.