South Vietnamese invade Laos, refuse entry to reporter Jeff Williams. US air power supporting invasion, Vietnamese attempting to conceal operation. Armored personnel carriers loaded with soldiers pass as sun sets, then daylight, dust camouflage, followed by bulldozers. Helicopters shooting rockets. Two US advisers with General Hoang Xuan Lam. Vietnamese soldiers refusing passage to border edge to Jeff Williams. This item consists of raw, unpackaged, news materials relating to the South Vietnamese invasion of Laos.