October 7, 2011 6:14 pm Cain's Able GOP presidential candidate Herman Cain spoke at a book signing today in Arlington. Local 5:53 DC officer hurt in Northwest shooting; suspect vehicle flips in Landover 3:36 DC officer shot near police station in Northwest, rushes inside for help 4:39 Why parents need to let their kids fail 2:38 Cargo ship that destroyed Key Bridge pulled back to Port of Baltimore 1:07 Cargo ship that crashed into Baltimore bridge moving back to port