Hillary has quit answering a number of questions because she has been caught lying over and over again, Remember the Bosnia thing, sorry folks, but when you are getting shot at you are never fuzzy about the details...ever. Then Bill tried to cover for her and he failed miserably. First and foremost, the S
Otherwise, I think her strategy is that if you don't answer the questions no one can say you lied. Basically though, anytime her lips are moving she is lying, I know that is a cliche' but in her case it is utterly true.