U-S President Barack Obama has told Congress his country should not impose new sanctions on Iran if it is serious in negotiations with Tehran over its nuclear energy program. Obama-- who has been speaking to reporters in his last press briefing of the year-- has refreshed his warnings that any new sanctions against Iran could derail the current diplomatic efforts to resolve the differences with Iran. Obama says he understands why some U-S lawmakers want to \\\"look tough\\\" on Iran. But he says the U-S must give diplomacy a chance. Obama has further repeated threats that the U-S keeps all options on the table regarding Iran if it fails to comply to the terms of the nuclear deal that Tehran signed with the permanent members of the U-N Security Council plus Germany last month. Obama says any alternative to the path of diplomacy toward Iran would have unintended consequences for the US. And he added that it would be in the interests of the American people to resolve the Iran issue diplomatically. Obama\\\'s remarks come a day after Congress put a bill on the floor to slap new sanctions on Iran if it breaches the terms of the nuclear deal reached in Geneva last month. The new sanctions would also force the U-S administration to support Israel militarily, diplomatically, and economically in the event Tel Aviv decided to launch an attack on Iran\\\'s nuclear sites. Show Less >>