after a terrorist attack, which side do you think people are going to err on. >> sreenivasan: hari kondabolu, the document ask its problem with apu airs tonight on tru tv. thank you for joining us. >> thank you, hari. >> this is "pbs newshour weekend," sunday. >> sreenivasan: the head of the european union says catalonia's push for secession from spain is a "disaster in several ways." jean-claude juncker told the spanish newspaper "el pais" today he can't accept when regions go against nations, especially outside the law. after catalonian leaders declared independence in october, spain dissolved the catalan government, arrested its leaders, and scheduled a new regional election next month. northern ireland political leader gerry adams is resigning as as president of sinn fein. the nationalist party he's headed since 1983. adams told a party convention last night, "leadership means knowing when it's time for change, and that time is now." adams, who's 69, also said he won't run for re-election to the irish parliament next year. adams was a key negotiator of the 1998 "good friday" agreement th