Vice President Kamala Harris is in the midst of a visit to Southeast Asia. She’s paid a visit to leaders in Singapore and on Tuesday, heads to Vietnam. Part of the effort is to reassure our allies there that the US remains committed to the region. We look at how the unfolding chaos in Afghanistan is impacting that message. Host Marco Werman speaks with Yun Sun, co-director of the East Asia Program at the Stimson Center in Washington, DC.