Biden, Yoon Agree on Strong N.Korea Posture at Talks in Seoul

US President Joe Biden arrived in South Korea on Friday, the first stop in his five-day Asian tour. Biden met with his counterpart South Korean President Yoon Suk-yeol for the first time. They agreed to strengthen their countries' combined deterrence against the growing threat from North Korea. NHK World's Sassa Kazuto analyzes the summit.