The Yahoo coverage says two Americans and one German American won the prize.

My bet for the most accurate reporting is the New York Times article that says three Americans won the prize.

This is mainly because I remember I wanted to leave France and return stateside with a French citizenship as a souvenir.  I found out from American authorities that if I wanted to take any kind of oath of allegiance to any country that was not the U.S. of A., then the U.S. of A. would consider it a renouncement of citizenship. Read more on You May Shut Down The Government, But Don’t Shut Down Science!…