IMF chief Dominique Strauss-Kahn agrees to forensic examination for investigation into alleged sex assault on Manhattan hotel maid; Strauss-Kahn arrest has prompted fears in Athens that they have lost a powerful advocate for economic recovery; Chinese artist Ai Weiwei allowed visit with wife--the first contact with family or friends since his arrest six weeks ago; Japanese authorities say they will have shut down Fukushima nuclear reactors by the end of the year; Egyptian authorities turn on pro-Palestinian protestors; John Kerry to visit Pakistan for counter-terrorism talks; Mississippi floodgates opened to save Baton Rouge and New Orleans; and more