In Vietnam's Mekong Delta, the lure of moving to the city grows even stronger amid climate shocks

Dao Bao Tran and her brother Do Hoang Trung, 11-year-old twins growing up on a rickety houseboat in the Mekong Delta, have dreams. Tran loves K-pop, watches videos at night to learn Korean and would love to visit Seoul. Trung wants to be a singer.