Demonstrators in New York, D.C. and Berkeley marching in protest of recent grand jury decisions in Missouri and New York,where charges were not filed against white police officers involved in the death of unarmed black men.Marc Morial, President of the National Urban League speaking on CBS' Face the Nation.The protests are really directed at the lack of accountability, so we're gonna have to focus on what is needed to create a better system.Meanwhile, officials say two police officers were assaulted by protesters on the Brooklyn Bridge when they tried to arrest a man who was allegedly trying to throw a garbage can onto police below.