Question: An effective anti-infiltration barrier, running across South Vietnam deep into Laos, was a grand vision of the US Secretary of Defence who was born in which year ?
Sentence (from "Project Dye Marker"): Project Dye Marker was a cover name for a strong point/obstacle component of the electronic anti-infiltration barrier system in South Vietnam known as "McNamara Line" during the Vietnam War, which aimed to create an alternative to the US bombing of North Vietnam.
Relevant evidence: No