Dismay in Ukraine as Russia and US reset ties

This BBC World Service podcast covers major global events on February 19th. The main focus is on the US and Russia's renewed negotiations regarding the war in Ukraine, excluding Kyiv, and the resulting anxieties in Ukraine. The podcast also reports on the handover of hostages and bodies between Israel and Hamas, the charging of a British couple in Iran with spying, and the escalating conflict in eastern Congo. A segment discusses the potential for growing replacement teeth using a mix of human and pig cells. Listeners gain an understanding of multiple international crises and scientific advancements.