Obama's First Presidential Visit to Israel Obama: U.S. Will Work Closely With Israel to Prevent Nuclear Iran

President Barack Obama and Prime Minister Benjamin Netanyahu hold joint press conference in Jerusalem; Netanyahu: Israel committed to two-state solution; Obama says U.S. prefers diplomacy with Iran, but 'all options on the table'; Netanyahu says Israel has right to defend itself.

U.S. President Barack Obama pledged on Wednesday to work closely with Israel and do whatever was necessary to keep the Islamic Republic from obtaining nuclear arms, "the world's worst weapons."