Conservation Efforts and Challenges for Marine Life Protection

Police clashes with protesters at Columbia University have spilled over into other institutions, raising the question of how to protect free speech on campuses. Given America’s history with students’ anti-war protests going awry, should politicians be worried? Why most British voters now think Brexit was a mistake (we did warn you!) (08:53) And, could new tech protect whales from speeding ships (15:45)?

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