Binyamin Netanyahu, the Israeli prime minister, will use a visit to Washington this week to press the US to release sophisticated bunker-busting bombs needed for a possible strike on Irans nuclear sites. The trip comes as both sides strive to defuse the crisis provoked by Israels announcement during a visit by Vice-President Joe Biden this month of the building of 1,600 houses in east Jerusalem. Ban Ki-moon, the United Nations secretary-general, said in Ramallah yesterday: Let us be clear: all settlement activity is illegal anywhere in occupied territory, and this must stop. (The Sunday Times)