Two days after Barak Obama's latest foreign-policy gaffe—allowing reporters to see him reading a memo from his campaign advisors on how to spin the war in Iraq—there's a new round whispering among Washington's foreign-policy watchers as to whether the Illinois senator and presidential wannabe can really be taken seriously on these subjects. Similar chatter could be heard this summer after Obama's previous blunders on Pakistan and Israel-Palestine. This most recent episode occurred during Tuesday's Senate testimony by Gen. David Petraeus and Amb. Ryan Crocker. To be Reading a memo about how to politicize the war during their testimony showed incredibly...