Quartet urges settlement freeze The international Quartet of Mid-East peace mediators urges Israel to freeze settlement activity in occupied territories. Taliban arrests halt UN contacts A former UN envoy to Afghanistan says Pakistan's arrest of Taliban leaders halted a channel of secret UN contact. 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 asylum seeker's death Switzerland halts special flights to deport asylum seekers after a Nigerian man on hunger strike died at Zurich airport. Rio Tinto announces Guinea deal Rio Tinto says it has signed a deal with China to develop a massive iron ore project in Guinea.