machine error? human error ?

Big news on CNN about voting machines, and folks who wanted to click Obama, but machine took it as McCain...then debate on whether it was the voter's fault or the machine's fault. 

They showed a machine and how it looks, out of all the space on the touch-screen, the two buttons to select obama and mccain are right on top of each other and by themselves, use up about 3% of the screen area - hardly a line space between - blame the guy who designed the User interface !!! not the voters or machines. And this on a touch screen!!!

What do you need the remaining 97% of the screen for? to put disclaimers to avoid litigation? 

Put two big boxes there, one side for John Mccain, with his Big photograph and the same for obama on the other side, then, if something goes wrong, blame the voter or the machine.....