A solution from a cowboy

I spoke with an old cowboy in Texas whom had a feasable solution in Iraq. He said we should form a perimeter around Bahgdad and then evacuate the city into the desert. We would have every person leaving identify themselves and once identified they would be allowed to leave. The terror cells we are trying to find would likely not come forward to be identified and would have to remain in the city. This way, all we would have left would be the enemy we seek and our troops could then exterminate the remainder of the population. This could be done in every hot spot. We could use our resources to care for the evacuees while our troops deal with the elements that remain. This may or may not work. What would we stand to lose, what we are doing now is not working. This is a very rough draft of any sort of plan but it does seem feesable to me. If one old Cowboy can come up with a plan, Im sure our government could fine tune it to make it feesable. What do you think?