New Zealand oil spill could be country's worst environmental disaster
Fierce street fighting rages in Gaddafi's hometown Sirte
Tawakkul Karman becomes first Arab woman to win Nobel Peace Prize
Helicopter crashes into New York river with 5 passengers aboard
Russian tycoons face off in high-profile legal battle in London
Abu Dhabi's Crown Prince opens Spanish solar power plant
Cleared on appeal, Amanda Knox returns home to Seattle
Millions affected as double typhoon batters Philippines
Amanda Knox supporters cheer verdict in hometown Seattle
Film icon Sean Penn joins Egyptians in Tahrir Square protest
Amanda Knox awaits appeal verdict in Italian murder trial
Michael Jackson images dominate opening of manslaughter trial