This "concern" is merely a smokescreen.

By some strange "coincidence", the 3 Republicans leading the smear attack on Susan Rice are the same 3 who supported Scott Brown in his failed bid for a Senate seat are now saying... oh no, never Susan Rice... but we'd love to see Kerry get the job of Secretary of State....

and leave unsaid that Kerry's Senate would look sooo good if our pal Brown got it in the special election... just like last time.