Three men have been arrested for planning attacks on Frankfurt's international airport and the U.S. military base in Ramstein, the German Defense Minister said Wednesday. "There was an imminent threat," Franz Josef Jung told Germany's ARD broadcaster. He declined to elaborate. Two of the suspects had German citizenship while the third was Pakistani, Germany's Sudwestrundfunk public broadcaster said. German federal prosecutors said they had arrested three suspected members of "an Islamic motivated terrorist organization." It was not immediately clear whether the three were suspected of having links to al Qaeda. Sudwestrundfunk said the men were arrested Tuesday evening and were...