I agree with you I think this will affect people as they are standing in line and I think more people will break for Bush and that won't be noticable in polls.
Mike Barnacle (lib that he is) hit the nail on the head yesterday. He said [paraphrased]:
"The issue is much more basic than 'Who will keep us safer?' When people go into the voting booth they will cast their ballot for 'Who will kill them quicker?' And that person will be George Bush."