WASHINGTON (Reuters) - The United States is withdrawing from UNESCO, the United Nation s cultural and educational agency, effective Dec. 31, the U.S. State Department said in a statement on Thursday.  This decision was not taken lightly, and reflects U.S. concerns with mounting arrears at UNESCO, the need for fundamental reform in the organization, and continuing anti-Israel bias at UNESCO,  the department said, adding that the United States would seek to  remain engaged ...as a non-member observer state in order to contribute U.S. views, perspectives and expertise.  
U.S. to withdraw from U.N.'s cultural agency in December