The Intelligence: America’s college crackdowns

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)?

Listen to what matters most, from global politics and business to science and technology—Subscribe to Economist Podcasts+

For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.