As the nation awaits the grand jury's decision of whether to indict Ferguson, Missouri police officer Darren Wilson for the killing of unarmed black teenager Michael Brown, President Obama said that Ferguson should not be used as an "excuse for violence." In an interview with ABC News George Stephanopoulos that aired Friday night, Obama acknowledged the right to protest over the killing of Brown, but urged that demonstrations remain peaceful. "This is a country that allows everybody to express their views," Obama said.