Recall recount. Computer scientists already warning voters to use absentee ballot in California recall election to make sure the vote is correctly tabluated as fears mount that touch-screen voting machines could tip the results.

None of the elections officials who supervise the 50,000 touch-screen machines serviced nationwide by Diebold Election Systems have reported glitches or hacks that have resulted in known miscounts or fraud, said Mark Radke, director of the voting industry division of North Canton, Ohio-based Diebold.

But David Dill, a computer science professor at Stanford University and a leading skeptic of touch-screen voting, is urging voters in the four counties using touch-screen terminals -- Alameda, Riverside, Shasta and Plumas -- to vote with absentee ballots, which use optical scan systems and provide paper ballots. He fears falsification or deletion of votes on touch-screen systems.

"You can't do a meaningful recount if the question is about the integrity of the voting machines themselves," Dill said.