Yes, just like we have to "understand" why muslim terrorists blow the sh** out of everyone in sight, right? What a liberal thing to say!
A wall will not keep 100 percent of the ILLEGALs out of the country but it sure as hell will stop most of them, making it easier for the border patrol to do their job, allowing apprehension of those the do make across. More importantly it will emphasize to the world that we are a sovereign country and not part of Mexico, something Vicente and President Bush don't seem to grasp.
Thanks, I already addressed that point earlier in this thread.