Because the voting machines are easier, with less security, less ways to catch a crook ( you dont have to launder stolen votes) and actually more money to be stolen than any ATM.

After all, Bernanke is basically stealing $45B from all of us and handing it directly to plutocrats and banksters each month. Thats pretty strong incentive to rig the system - and just 1 out of 10000 different incentives. ( From military contracts to homeland security contracts... and beyond. )

Sorry Jet, just because your preconceptions do not agree with the possibility - you cannot just dismiss it out of hand.

For who could be free when every other man's humour might domineer over him? - John Locke (2nd Treatise, sect 57)