Quartet urges settlement freeze The international Quartet of Mid-East peace mediators calls on Israel to freeze settlement activity in occupied territories. Obama hails 'historic' health bid US President Barack Obama says the weekend's congressional vote on healthcare reform is a "historic" opportunity. SA students riot over star's bail Students in South Africa throw stones at police after a musician accused of killing pupils in a car race is freed on bail. Papal letter on Irish sex abuse Pope Benedict writes a letter to the Catholics of Ireland on how to deal with the sexual abuse of children by priests. Swiss probe deportee's death Switzerland halts special flights to deport asylum seekers after a Nigerian man on hunger strike died at Zurich airport.