Cika wannan jumlar: A shekara ta 2004, yayin da yake aiki a Gidauniyar Ford, John Cavanagh, babban darektan Cibiyar Nazarin Manufofi da mai ba da tallafin Gidauniyar Ford, ya tuntubi Khamvongsa. Cavanagh ya sanar da Khamvongsa game da
Yaƙin Sirri kuma ya ba ta tarin zane-zanen da waɗanda suka tsira daga harin bam a Laos suka yi. Ta hanyar wadannan zane-zane ne Khamvongsa ya yi wahayi zuwa ga kafa Legacies of War.