If you haven't seen it yet you've gotta watch this intense back and forth between Marcus Luttrell and Jake Tapper of CNN. Earlier this week Luttrell was on the network with Mark Wahlberg to promote the 'Lone Survivor' movie that's based on his book. Both tell the true story of his amazing experience during a U.S. Navy Seal operation called 'Red Wings'.

During the interview Jack Tapper learned an important lesson. Never talk to a Seal about hopelessness or utter the phrase "senseless loss of American lives". It's not a good ideal to mix words with a man who could kill you with his bare hands in a 101 different ways, each more painful and humiliating than the last. I hope Tapper learned his lesson.