From NPR News:

"Bird droppings could be a threat to the shuttle re-entry."

And from the WayneMadsenReport.com:

"Even Bush's crap is classified top secret. According to our Austrian sources, Austrian newspapers are currently abuzz with special security details of George W. Bush's recent trip to Vienna. Although the heavy-handed Gestapo-like security measures meted out to Viennese home owners, business proprietors, and pedestrians by US Secret Service agents and local...