The apparition walked backward from him; and at every step it took, the window raised itself a little, so that when the spectre reached it, it was wide open.
The spectre, after listening for a moment, joined in the mournful dirge; and floated out upon the bleak, dark night.
Another officer with knowledge of the operation said the AC-130s were being used "only on the margins where they are confident they would be safe" and where there is no evidence of surface-to-air missile batteries.Only about eight of the Spectres are in the Air Force Special Operations Command inventory.
One US Air Force source said: "Their gunfire is horrendously effective - but they are easy targets." The Spectre first flew in anger in Vietnam in 1972 and has also seen service in Grenada, and Bosnia.