Presumptive Democratic presidential nominee Obama speaks at the AIPAC policy conference in Washington

 
Presumptive Democratic presidential nominee Obama speaks at the AIPAC policy conference in Washington
Presumptive Democratic presidential nominee Senator Barack Obama (D-IL) speaks at the American Israel Public Affairs Committee (AIPAC) policy conference in Washington June 4, 2008. Obama said on Wednesday Iran posed a serious threat in the Middle East and vowed to stop it from acquiring a nuclear weapon at the pro-Israel lobby group's conference. REUTERS/Kevin Lamarque (UNITED STATES) US PRESIDENTIAL ELECTION CAMPAIGN 2008 (USA)