Lynne Cheney's amnesia on her book Sisters on CNN Wolf Blitzer's interview

I've watched Wolf Blitzer's interview with Lynne Cheney (the vice president's wife) few days ago and I just don't know what to make of her. She's got a sudden amnesia about her book "Sisters".

Reference: http://www.whitehouse.org/administration/sisters.asp

Here's part of the CNN's transcript...

Quote

BLITZER: Here's what the Democratic Party put out today, the Democratic Senatorial Campaign Committee. Lynne Cheney's book featured brothels and attempted rape. In 1981 Vice President Dick Cheney's wife, Lynne, wrote a book called "Sisters", which featured a lesbian love affair, brothels and attempted rapes. In...

(CROSSTALK)

BLITZER: ... 1988 Lynne Cheney wrote about a Republican vice president who dies of a heart attack while having sex with his mistress. Is that true?

L. CHENEY: Nothing explicit and actually full of lies. It's not -- it's just -- it's absolutely not...

BLITZER: Did you write a book entitled "Sisters"?

L. CHENEY: I did write a book entitled "Sisters"...

BLITZER: It did have lesbian...

L. CHENEY: This -- no, not necessarily. This description is a lie. I'll stand on that.

BLITZER: There is nothing in there about rapes and brothels?

L. CHENEY: Wolf, Wolf, Wolf, could we talk about a children's book for a minute?

Full transcript: http://transcripts.cnn.com/TRANSCRIPTS/0610/27/sitroom.03.html

No... not necessarily? What kind of answer was that???