Lawrence Wilkerson, Distinguished Visiting Professor of Government and Public Policy at the College of William y, and former Chief of Staff to U.S. Secretary . The speech covered National Security, Climate Change, Interminable War, Debt, Immigration, Inequality, racism, and much more. The speech is striking in its . Abby tin interviews retired U.S. Army Colonel Lawrence Wilkerson, former national security advisor to the Reagan administration, who spent years as an . Col. Lawrence Wilkerson, former chief of staff to Colin Powell, discusses record US military strikes under President Trump and how Al Qaeda is taking advantage .