What happens when you unload stocks quickly? Ask Warren Buffett -- his sale of airline shares may have cost him a $2.7B. https://t.co/kvHKBY5aEE @IBDinvestors @MilMileSecrets #business #stockmarket #Airlines $AAL $DAL $LUV $UAL $JETS $BRKB https://t.co/ojpNdGTexO