WASHINGTON (Agencies) - Hamid Karzai has said privately he intends to step down in 2014 as president of Afghanistan as required by the country's constitution, Defense Secretary Robert Gates told a Senate panel on Wednesday. Afghanistan's constitution limits a president to two terms in office but there has been speculation in the past that Karzai might attempt to change the rules to allow him to stay in office longer. He has in the past indicated that he might want to change the constitution so that it could allow him to serve more than two terms, but Gates said Karzai has backed down from that. Gatess comments about Karzai came at a Senate appropriations hearing on Wednesday in which he also addressed reports that the Pakistani government has arrested five informants who helped lead the CIA to Osama bin Ladens home in Abbottabad. Gates did not confirm the reports but did say that most governments lie to each other, arrest people and spy on people. That, he said, is the real world we deal with.