Well. I agree with most everyone on here that Newton can be neutralized, but, by golly, I still find it to be a rather interesting thought as to how Saban and company decide to do it.
I personally remember trying to tackle guys who were roughly twice my size. I settled on a method. First, I decided to get my head out to the side away from his knees. Second, well, I long since decided to hit him low, below the knees. When I see guys hitting big runners high, I still have trouble imagining why they've never figured it out -- hit him low. The problem is, most guys aren't short like me, and it is hard to get low sometimes.
Example. All you have to remember is how the freshman Texas quarterback tried to grab Marcel Dareus about chest high. Dareus ran over him like a Tyrannosaurus Rex running over a Raptor. You hit a big guy low, when he has built up any speed, the bulk of his weight is above his knees. You escape that by hitting him below the knees.
Now, if you happen to be a Hightower or a Dareus, where you hit Newton doesn't matter as much.
I just ask you -- what if you were out there, and this guy comes running at you, and the earth is shaking a little, like the glass of water in Jurassic Park? Are you going to tell me, 'Aw, no problem'?
Somebody's going to have to hit that dude somehow, and if it's a Dareus or a Hightower, the collision is going to be pretty seismic. I just can't remember seeing a guy as big as Newton running like he does.
Will he get hurt? Maybe. Maybe not. Tebow never really got hurt when he was running. You get 250-260 pounds moving at about fifteen miles per hour. That I find interesting, if nothing else.