And we shall call it the Berlin wall!
Walls do keep people out... but they also keep people IN. Which is not really something I think the USA wants to even be suggesting to its citizens.
Sure, many things would make the USA safer... but many of those things would prevent it from truly being the USA.
45-60 days, and we go in. Strike command and com centers, and factories. Then lay classical siege of Bagdad. Of course that is only one of the semi-declassified tactics being looked at. But it will probably be some form of that. It won't be a fast skirmish like the Gulf War was. This will take a while longer.
There just has to be some better way. Let's just hope it doesn't go urban.
It will be interesting if they actually provide anything near proof before they actually strike though.