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A question looms over the trial of accused Boston Marathon bomber Dzhokhar Tsarnaev as federal prosecutors enter the final stages of their case against him: Will he testify in his own defense?

Australian Prime Minister Tony Abbott has warned Indonesia of the potential for diplomatic fallout if Jakarta goes ahead with the looming execution of two Australian citizens on death row for drugs charges.

Venezuelan security forces faced off with stone-wielding protesters on Thursday as supporters of President Nicolas Maduro also rallied on the anniversary of last year's fatal unrest.