Cheney was essentially ambushed, as the previous questions had nothing to do with the topic of UFO's. My sense is that he wasn't ready to field a call on this topic and it caught him off guard, so we probably got a more truthful answer:
A similar situation happened when Grant Cameron managed to ask Vice President Dick Cheney the UFO briefing question on the Diane Rehm PBS radio program, April 11, 2001. (http://www.ufoeviden...ents/doc887.htm) Cheney had been a Senator and also Sec. of Defense under Pres. George Bush Sr. before becoming Vice President.
Cameron asked Cheney whether he had ever been briefed about UFOs when he was in the government. To this Cheney replied, "Well, if I had been briefed on it, I'm sure it was probably classified and I couldn't talk about it."
Like Clark, Cheney talked around the question without giving an unqualified denial. Again the key to this, as Cameron points out, is Cheney mentioning how the subject matter would be classified, so that he couldn't talk about it if he had received such briefings.
This snippet above was taken from an article about Gen. Wesley Clark.
The full article:
Edited by Scudbuster, 31 March 2013 - 05:07 PM.