European leaders met in London this weekend after Donald Trump and Volodymyr Zelensky’s public row shattered hopes for a US-led truce in Ukraine. What did the summit achieve? Our correspondent visits Mexico’s border to find out if strengthened force will stem the flow of fentanyl to America (9:46). And remembering Muhsin Hendricks, the world’s first openly gay imam (17:37). 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.