US President Barack Obama on Tuesday called on Iran to make a decision regarding its controversial nuclear program, during a speech marking the 30th anniversary of the takeover of the US Embassy in Teheran. He insisted that he wants the US and Iran to move beyond the "path of sustained suspicion, mistrust and confrontation" that followed the subsequent hostage crisis in 1979. "Iran must choose," Obama said. "We have heard for 30 years what the Iranian government is against; the question, now, is what kind of future it is for. ... It is time for the Iranian government to decide whether it wants to focus on the past, or whether it will make the choices that will open the door to greater opportunity, prosperity and justice for its people.