live from washington, this is bbc news. at least eight people have been killed after a major earthquake struck japan. thousands evacuated from coastal areas, though all tsunami warnings have now been lifted. south korea's main opposition leader has been stabbed during a public event. the country's president has called the attack unacceptable. israel's supreme court strikes down judicial reforms that sparked widespread protests last year. it's seen as a blow to prime minister benjamin netanyahu. hello. i'm helena humphrey.