a just and holy war -- radovan karadzic strikes a defiant tone as he begins his defense in the hague. welcome to bbc world news, broadcast on pbs in america and around the globe. coming up later, the children of afghanistan, searching for a better life. un accuses europe of failing to protect them. >> amid the angels of palestine, a new vision is becoming a reality. >> and visions of the first ever purpose-built palestinian city. >> with more than three-quarters of the people in chile affected by the earthquake that struck three days ago, the country's president has had to appeal for international help. at least 700 are known to be dead but many are still trapped in rubble in the south. aid is hard to deliver. news has been coming in that a small plane has crashed while on route to the epicenter, concepcion. let's go to the capital, santiago. >> from the air, the power of the earthquake and tamales unleashed can be seen. towns and villages -- towns and villages were broken down and washed away by the waves. in central chile, near the epicenter, few buildings still stand. even for a na