The political head of UNAMID, Rodolphe Adada, a bow-tied Congolese diplomat who also stepped down last week, has been largely ineffective.

ECONOMIST: The crisis in Darfur

BAGHDAD, Iraq (CNN) -- Facing mounting pressure to bow out, Iraqi interim Prime Minister Ibrahim al-Jaafari said Thursday that he would step down if members of his Shiite bloc say they want a new candidate.

CNN: Iraqi interim PM tells party he'd step down

Call it the Das Boot effect: With their deep keels and heavy ballast, J-boats push such a mass of water that they tend to hunker down in a breeze, submerging the bow and stern and soaking practically everyone on deck.

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