They are armored when they get close to land. But at depth they are not because of weight & economics. Even if a cable were armored for the full length - I'm no

They are armored when they get close to land. But at depth they are not because of weight & economics. Even if a cable were armored for the full length - I'm not sure it would withstand an intentional anchor-dragging. Someone needs to do an A/B test. (no not really)