DA NANG, Vietnam — Bui Van Phong faced a choice when the Vietnam War ended 50 years ago: Stay in his small village, helping his parents carry on the family’s centuries-old tradition of making ...

Bui Van Phong faced a choice when the Vietnam War ended 50 years ago: Stay in his small village, helping his parents carry on the family’s centuries-old tradition of making fish sauce, or join the ...

But that heritage is under threat, and not only from giant conglomerates that mass-produce fish sauce in factories. Climate change and overfishing are making it harder to catch the anchovies ...