Col. Andrzej Kopacki, center, an assistant military attache with the Polish Embassy in Washington, attends an event on Capitol Hill to announce the release of information about the Katyn Forest massacre of Polish Army officers and others captured by the Soviets during their invasion of Poland during World War II, in Washington, Monday, Sept. 10, 2012.  At left is W. J. Milan-Kamski of Easton, Md.  (AP Photo/J. Scott Applewhite)