This happened yesterday:
US to hold 'bird flu' simulation
Washington: Senior US officials will huddle out of sight at the White House on Saturday for a four-hour crisis exercise aimed at testing plans for a possible outbreak of deadly "bird flu," aides said. White House spokesman Trent Duffy declined to say whether the drill would be based on a hypothetical natural spread of the illness or a terrorist attack using the virus, the human strain of which has killed nearly 70 people across Asia since 2003.
"But it's an exercise that the government does just to prepare in the event of emergency. It's a drill," Duffy said aboard Air Force One as US President George W. Bush made a political fundraising trip to Minnesota.
"I've got to underscore again that we have no evidence that a threat is imminent. But the President said that we have been given time to prepare, and we must prepare," the spokesman said on Friday.
The highlighted sections are especially ominous.