US HB3752

Adds glioblastoma multiforme (an aggressive brain cancer) to the list of diseases presumed to be service-connected for Vietnam-era veterans exposed to herbicides like Agent Orange

Amends Section 1116(a)(2) of title 38, United States Code, allowing affected veterans to receive VA disability benefits without proving direct causation

Applies to veterans who served in Vietnam, Laos, and Cambodia during the herbicide spraying operations from 1961-1971

Named after Specialist Fourth Class Keith Smith, honoring a veteran presumably affected by this condition

Congressional findings note approximately 19 million gallons of herbicides were sprayed in Vietnam, including 13 million gallons of Agent Orange, exposing tens of thousands of Americans