State Of The Union 2010 (FULL TEXT): Read Obama's Speech: "Even as we prosecute two wars, we are also confronting perhaps the greatest danger to the American people - the threat of nuclear weapons. I have embraced the vision of John F. Kennedy and Ronald Reagan through a strategy that reverses the spread of these weapons, and seeks a world without them. To reduce our stockpiles and launchers, while ensuring our deterrent, the United States and Russia are completing negotiations on the farthest-reaching arms control treaty in nearly two decades. And at April's Nuclear Security Summit, we will bring forty-four nations together behind a clear goal: securing all vulnerable nuclear materials around the world in four years, so that they never fall into the hands of terrorists"
Well, President Obama focused on domestic problems in his State of the Union Address. He mentiones summarily the two wars and that all combat troops are going to leave Iraq by August 2010.
However, as you can see in the excerpt above the greatest danger is nuclear weapons, apparently greater threat than economical, and the possibility that a terrorist might bring a bomb onto American territory. A Nuclear Security Summit is to be held in April as announced in July 8, 2009 at the White House.
One problem is a country like Iran where there is anger and terrorism at the same time as the possible production of nuclear weapons. Such a country, like also Pakistan, could produce small carry-on weapons for terrorist use. Robert Kagan writes an article in Washington Post, How Obama can reverse Iran's dangerous course, that one solution to this problem might be that the probability for regime change now is greater than the probability that the leaderhip in Iran will give up its nuclear program.