fukushima plant triggered by last year's earthquake and tsunami. after six months of investigation and 900 hours of hearings, the report outlines steps to prevent a similar meltdown. investigators are also pointing fingers at the prime minister at the time of the accident, saying he added to the chaos and confusion. new details about that deadly cruise ship accident off the coast of italy. court documents now claim the crew of the "costa concordia" september sailing for several days despite knowing about electrical problems on board. also, water-tight doors were allegedly left open and the crew was using the wrong maps. two americans were among those killed. police in germany now say they have a motive in a deadly hostage siege. the heavily armed man killed four people and then shot himself to death when a commando team stormed the apartment where he was holed up. investigators in the city of karlsruhe say the man was upset that he and his girlfriend were being evicted. also, more questions are