Tanking SpecFollow

You need to grab cruelty... this one is pretty much the main thing. Every warrior build at 70 (and I mean EVERY) should have cruelty.

I would drop everything past imp. TC (including iron will) because AM does not give you much rage at all, especially when you consider you're getting beat on the whole fight.

Putting a few points into imp. HS might be a decent idea for rage dumping as well.

cruelty doesn't help in tanking. if you rely on crits for any threat than you are wasting your time as well as the raids. find a way to get some attack power while maintaining your 490 defense and 12k life entry for kara and you should be fine without it.

I'd have to somewhat disagree. Since Prot warriors don't do a lot of DPS, having 5% crit will help aggro. In Kara not every fight is a boss fight. I'm basically done with gear from there, except for that elusive King's Defender... exaulted with them, and still never seen it once. Anyway.. I'm actually starting to get rage starved on trash fights, I'm more than happy to see the +rage from crits. Since my crit% is like 6% lol I'm sure it has a lot to do with cruelty. I like it... but a 'must have' not really, but IMO it's very nice.

Oh, and as for the original build. I'd drop imp. defensive stance and imp taunt and plunk those 5 freed up points right into cruelty, because it's one of the best talents a warrior has, prot or otherwise.

Firstly, I am going to assume that you are main tank, not off-tank...

Starting with the arms tree - You should be putting 5 points in deflection for obvious avoidance reasons, and 3 points in imp. thunerclap. Thunderclap is the warriors only way of doing AOE damage as well as half-decent threat. For those situations in which you are tanking 2+ mobs, you definitely want to have this talent. As the main tank, you should not be getting anything past those two talents. You will always be getting hit, therefore generating rage, so Anger Management is unnecessary. Also, do not get Iron Will. It is a waste of 5 points. Mobs that charm or stun the main aggro holder is pretty rare, and in the few cases in which it happens, your off-tank will pick up the target.

Fury tree - Take those 5 points from Iron Will and drop them in cruelty. Not many people realize how vital Cruelty is to a tank. In my tanking gear without this talent, I have a measely 3% chance to crit. A critical strike is double damage done, basically double rage. The average tank strikes 500-1000 times in the average ZA boss fight. This means that if you strike the max amount, your total crits (extra rage) goes from a measely 30-80. Of course, this number will be raised do to buffs, flasks, etc.

Prot tree - Your build here looks very good. Take that one point from the arms tree and stick it in either imp. bloodrage or imp. shield wall. Improved bloodrage is nice for those fights when you are either not getting hit that much, or when you have heavy dps and you want to start off a fight with enough rage to get a few devastates or shield slams in. While imp. bloodrage is my personal choice (I actually go 2/2 and take one out of imp. sunder armor), many tanks like putting this point in improved shield wall. While it is a 30 minute cooldown, I cannot count the number of times I have heard of a tank dying when if the healer had just .5 or even 1 second left, the raid would have survived. While it doesn't sound like much, the extra 3 seconds from this talent may actually make a huge difference.

Hope this helps!

I still have 2/2 in imp taunt but it's not because I lose aggro a lot but more for those situations where I Taunt to grab the next mob from CC to go down and it resists. I think if I can stack some more +hit then my Taunts will get resisted less and I will feel more free to put those points somewhere else. I still do a lot of heroics and we tend to CC all that we can in there as the guild isn't quite geared enough to blow through them yet.