Should real robots obey Asimov's Laws?

[Nate the Great]

Uh, even human strength can be quite dangerous when coupled with the proper weapon and intelligence behind it.

I think that the key here is the question "how many tasks that we would want robots to do really require anything even remotely close to human intelligence?" I can't think of one. Hence any programmed moral code would be unnecessary.

As for the robot that can't shield the human, it's simple enough to add "if you can't protect one human without hurting another, just do nothing."