This week we tackle the most important question raised by the London Bridge attack: We ask two of the world's most eminent narwhal scientists if their tusks make good weapons. Plus! We dig into a new report on freedom of expression and, horrifyingly, find out that things are actually getting worse.

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Terrie M Williams and Mads Peter Heide-Jørgensen were our narwhal scientists.

Quinn McKew is the deputy executive director of Article 19, and you can read the full report on freedom of expression here.

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