Democrat Barack Obama said today there is no reason to believe that he is more likely to be tested by an international crisis if elected than if rival John McCain is, and said the important question is how the next president responds. "Whoever is the next president is going to have to deal with a whole host of challenges internationally -- and a period of transition in a new administration is always one in which we have to be vigilant," Obama said after meeting here with his team of national security and foreign policy advisers. He was responding to a...