The largest prisoner swap in post-Soviet history between the US and Russia took place this week. Why now and what does it mean? Then, Iran is calling for revenge and warns of regional war with Israel, following Israeli airstrikes that assassinated a key Hamas leader, Ismail Haniyeh, in the heart of Tehran. Plus, protests have erupted in Venezuela after election results declared President Nicolás Maduro the winner without providing a vote tally. With the results being disputed by the opposition and questioned internationally, the fallout has stirred tensions across Latin America. Bobby Ghosh, James Harding, and Carla Anne Robbins join guest host Deborah Amos to discuss the reactions to these stories on this week's World Review.