Stephanopoulos: "The Big Question... What Else Don't We Know About Governor Palin"

ABC News journo also says about 10 Republican operatives, including lawyers, are heading to Alaska for more background work on Gov. Palin. Watch video above. Read more from Stephanopoulos, including what Democrats are saying about Palin's vetting-- click here. Earlier: NBC's Andrea Mitchell also reports that lawyers are headed to the 49th state for "a deeper vet." Click above to watch. HALPERIN'S TAKE: The unanswered questions about Sarah Palin.