Crisis Coverage and the Candy Bar Imperative

In Feet to the Fire: The Media After 9/11, in chapter one: Crisis Coverage and the Candy Bar Imperative, Ted Kopple has many interesting topics. The one that most interest me is the comparison of access to the Iraq war and the Vietnam war. In the Vietnam war there were no limitations, you can stay with the unit as long as you want. On the other hand that's not the case with the Iraq war they say, "OK, you're going to be with the unit and you have to stay with that unit until the fighting is over."
Here Kopple is trying to mark an distinction for the young reporters, which I personal think is very informative.