US wants IMF to appoint new chief in wake of Strauss-Kahn scandal--talks have already begun to choose a replacement; Eurozone financial crisis won't be worsened by loss of Strauss-Kahn, experts say; China rationing electircity in provinces; Myanmar still holding 2,200 political prisoners despite release programme; Al-Qaeda chooses Egyptian as new leader; White House pledges aid for Northern Africa; and more