WASHINGTON D.C. - JANUARY 8: (AFP OUT) President Barack Obama signs a book of condolence in honor of victims of a terrorist attack January 8, 2015 in Washington D.C. Twelve people were killed, including two police officers, when gunmen opened fire at the offices of the French satirical publication Charlie Hebdo. The President's inscription reads 'On behalf of all Americans, I extend our deepest sympathy and solidarity to the people of France following the terrible terrorist attack in Paris.  As allies across the centuries, we stand united with our French brothers to ensure that justice is done and our way of life is defended.  We go forward together knowing that terror is no match for freedom and ideals we stand for - ideals that light the world. Vive la France!' (Photo by Ron Sachs-Pool/Getty images)