First, the results can be altered by manipulating both the memory cards and through the central tabulating system.
1) From Reps. John Conyers, Jr., Jerrold Nadler, and Robert Wexler; House Judiciary Committee Subcommittee on the Constitution,
November 5, 2004 letter to The Honorable David M. Walker, Comptroller General of the United States
... In Florida, there was a substantial drop off in Democratic votes in proportion to voter registration in counties utilizing optical scan machines that was apparently not present in counties using other mechanisms. 2) From a BBV article:
Diebold's opti-scan voting equipment used a memory card design that offered penetration by a lone programmer such that standard canvassing procedures cannot detect election manipulation.
The Diebold optical scan system was used in about 800 jurisdictions in 2004. Among them were several hotbeds of controversy: Volusia County (FL); King County (WA); and the New Hampshire primary election, where machine results differed markedly from hand-counted localities.
3) Leon County, Florida Elections Supervisor Ion Sancho and Information Systems Officer Thomas James authorized (among others) security expert Dr. Herbert Thompson, and special consultant Harri Hursti, identify any problems in Leon County's election security.
Computer expert Harri Hursti gained control over Leon County memory cards, which handle the vote-reporting from the precincts. Dr. Herbert Thompson, took control of the Leon County central tabulator by implanting a trojan horse-like script.
Diebold Optical Scan Voting System Hacked (3 Ways)
1. An altered memory card (electronic ballot box) was substituted for a real one. The optical scan machine performed seamlessly, issuing a report that looked like the real thing. No checksum captured the change in the executable program Diebold designed into the memory card.
2. A second altered memory card was demonstrated, using a program that was shorter than the original. It still worked, showing that there is also no check for the number of bytes in the program.
3. A third altered memory card was demonstrated with the votes themselves changed, showing that the data block (votes) can be altered without triggering any error message.
How to "Roll over the odometer" in Diebold optical scan machines
Integer overflow checks do not seem to exist in this system, making it possible to stuff the ballot box without triggering any error message.
More here:
http://www.scoop.co.nz/stories/HL0505/S00381.htm.4) It is indeed a giant step forward that Holt is advocating post election audits. I hope he gets them. Because, while the Optical scan voting equipment does offer a paper trail, it is very difficult to get authorization for a recount, as we saw in the past two stolen Presidential elections, so our chances of being able to have the paper ballots counted by hand are slim. Most states have very strict criteria for inspecting paper ballots, eg., Washington SOS Sam Reed prohibited checking paper ballets, deeming them "unauthorized recounts".
5) Finally (for this post anyway), though this doesn't prove anything, you might find it interesting. I did some personal analysis of the Florida election numbers by county and posted this here on DU in Nov 2004 :
In the Florida charts, 16 of the counties had results that look as if they had been transposed, or flipped
(eg Suwannee Co: 4,236 expected Rep -11,145 actual Rep votes, and 10,035 expected Dem - 4,513 actual Dem votes).
All those counties used the opti-scan machines, and Bush won in all 16 counties.24 Counties had results that looked heavily padded, and/or skimmed, or both. 22 used Opti-scans and 2 used touch-screen. Bush won 22 of the counties (inc the 2 touch-screens counties), and Kerry won only 2.
The remaining 27 counties (unless I am off by 1 or 2) had votes that seemed at least somewhat reasonable based on numbers alone. Of those counties, 9 were won by Kerry. There was a mix of OPti-scan and touch screen, which didnt seem to correlate to any pattern...
Bottom line is that in 38 of 40 opti-scan counties with the most messed up, flipped, padded and/or skimmed results, Bush won.In the 27 counties with results that were reasonably in line with the demographics (that I know of), Kerry won 1/3...
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TRANSPOSED or "FLIPPED" VOTES
COUNTY - Expected Repub - Actual Repub - Expected Dem - Actual Dem -Voting Equipment - FLA Loc.
Baker - 2,415 - 7,738 - 6,895 - 2,180 - Sequoia Op-Scan - P
Bradford - 3,072 - 7,553 - 6,663 - 3,244 - ES&S Op-Scan - P
Columbia - 7,825 - 16,753 - 14,119 - 8,029 - Diebold Op-Scan - P
DeSoto - 2,413 - 5,510 - 5,630 - 3,910 - Diebold Op-Scan - C
Dixie - 968 - 4,433 - 4,988 - 1,959 - Diebold Op-Scan - P
Gilchrist - 2,133 - 4,930 - 4,106 - 2,015 - Diebold Op-Scan - P
Gulf - 1,928 - 4,797 - 4,874 - 2,398 - ES&S Op-Scan - P
Hardee - 1,936 - 5,047 - 4,619 - 2,147 - Diebold Op-Scan - C
Hendry - 3,010 - 5,756 - 5,523 - 3,960 - ES&S Op-Scan - SC
Holmes - 1,171 - 6,410 - 6,036 - 1,810 - ES&S Op-Scan- P
Jackson - 4,339 - 12,092 - 14,127 - 7,529 - ES&S Op-Scan - P
Lafayette - 440 - 2,460 - 2,755 - 845 - ES&S Op-Scan - P
Levy - 4,594 - 10,408 - 9,940 - 6,073 - Diebold Op-Scan - P
Suwannee - 4,236 - 11,145 - 10,035 - 4,513 - ES&S Op-Scan - P
Union - 855 - 3,396 - 3,529 - 1,251 - ES&S Op-Scan - P
Washington - 2,634 - 7,367 - 6,947 - 2,911 - Diebold Op-Scan - P
POTENTIALLY PADDED AND/OR SKIMMED VOTES
COUNTY - Expected Rep - Actual Rep - Expected Dem - Actual Dem -Voting Equipment - FLA Loc
Bay - 33,079 - 53,305 - 29,351 - 21,034 - ES&S Op-Scan - P
Calhoun - 709 - 3,780 - 4,911 - 2,116 - Diebold Op-Scan - P
Citrus - 28,809 - 61,813 - 27,039 - 29,271 - Diebold Op-Scan - WC/P
Clay - 45,877 - 61,813 - 20,794 - 18,887 - ES&S Op-Scan - P
Duval - 139,605 - 218,476 - 174,965 - 157,624 - Diebold Op-Scan - NE
Escambia - 62,602 - 93,311 - 58,149 - 48,207 - ES&S Op-Scan - P
Franklin 943 - 3,472 - 4,586 - 2,400 - ES&S Op-Scan - P
Gadsden -*Dem won - 2,347 - 6,236 - 17,361 - 14,610 - ES&S Op-Scan - P
Glades - 852 - 1,983 - 2,227 - 1,434 - Diebold Op-Scan - C
Hamilton - 755 - 2,786 - 3,994 - 2,252 - ES&S Op-Scan - P
Highlands - 14,976 20,475 13,401 - 12,986 - ES&S Op-Scan - C
Jefferson *Dem won- 1,551 - 3,298 - 5,408 - 4,134 - Diebold Op-Scan - P
Liberty - 237 - 1,927 - 2,667 - 1,070 - ES&S Op-Scan - P
Madison - 1,238 - 4,195 6,605 - 4,048 - Diebold Op-Scan - P
Nassau - 16,031 - 23,726 - 12,017 - 8,543 - ES&S E-Touch - NE
Okaloosa - 51,059 - 69,320 22,085 - 19,276 - Diebold Op-Scan - P
Okeechobee - 3,622 - 6,975 - 7,124 - 5,150 - Diebold Op-Scan - C
Polk - 82,059 - 123,457 - 89,851 - 85,923 - Diebold Op-Scan - C
Putnam - 8,690 - 18,303 - 17,878 - 12,407 - Diebold Op-Scan - P
Santa Rosa - 37,543 - 51,952 - 18,880 - 14,635 - ES&S Op-Scan - P
Taylor - 1,622 - 5,466 - 6,486 - 3,049 - Diebold Op-Scan - P
Wakulla - 2,850 - 6,777 - 7,864 - 4,896 - Diebold Op-Scan - P
Walton - 11,987 - 17,526 - 8,802 - 6,205 - Diebold Op-Scan - P
Sumter - 13,851 - 19,794 13,004 - 11,583 - ES&S E-Touch NC
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If you count all northern counties 'panhandle' except those on the NE coast, there are 32 . Of the 40 counties with unreasonable numbers, 30 were in the panhandle. 8 were in the central portion of the state (not on a coast), and 2 were on the northeast coast.
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REASONABLE RESULTS (or at least SOMEWHAT reasonable, based on mumbers alone)
COUNTY - Expected Rep - Actual Rep - Expected Dem - Actual Dem -Voting Equipment - FLA loc.
Alachua - *Dem won - 30,887 - 47,615 - 56,111 - 62,348 - Diebold Op-Scan - P
Brevard - 118,772 - 152,838 - 96,860 - 110,153 - Diebold Op-Scan - EC
Broward -*Dem won - 184,152 - 236,794 - 346,565 - 441,733 - ES&S E-Touch - SE
Charlotte - 35,806 - 44,402 - 25,435 - 34,227 - ES&S E-Touch - WC
Collier - 67,388 - 82,493 - 30,912 - 43,277 - ES&S E-Touch - SW
Flagler - 15,669 - 19,624 - 14,657 - 18,563 - Diebold Op-Scan - NE
Hernando - 31,303 - 40,137 - 29,428 - 35,006 - Diebold Op-Scan - WC
Hillsborough - 159,843 - 241,630 - 190,023 - 210,892 - Sequoia E-Touch **? WC
Indian River - 31,325 - 36,744 - 18,433 - 23,850 - Sequoia E-Touch - EC
Lake - 58,388 - 73,971 - 42,237 - 47,963 - ES&S E-Touch - C
Lee - 91,895 - 114,153 - 57,513 - 76,874 - ES&S E-Touch - SW
Leon - *Dem won - 34,165 - 47,902 - 73,214 - 79,591 - Diebold Op-Scan - P
Manatee - 63,489 - 81,237 - 47,384 - 61,193 - Diebold Op-Scan - WC
Marion - 60,279 - 81,235 - 55,427 - 57,225 - ES&S Op-Scan - NC
Martin - 37,953 - 41,303 - 19,905 - 30,149 - ES&S E-Touch - SC
Miami-Dade -*Dem won - 248,045 - 326,362 - 305,486 - 383,032 - ES&S E-Touch - EC
Monroe - *Dem won - 15,286 - 19,457 - 14,278 - 19,646 - Diebold Op-Scan - SW
Orange- *Dem won - 135,299- 191,389 - 154,938 - 192,030 - ES&S Op-Scan - EC
Osceola - 20,804 - 32,812 - 25,508 - 30,295 - Diebold Op-Scan- **? - C
Palm Beach- *Dem won - 144,679 - 174,233 - 204,000 - 275,030 - Sequoia E-Touch - SE
Pasco - 76,531 - 103,195 - 71,237 - 84,729 - ES&S E-Touch - WC
Pinellas - 175,947 - 222,630 - 169,789 - 222,103 - Sequoia E-Touch - WC
Sarasota - 93,552 - 104,446 - 60,833 - 88,225 -Diebold E-Touch - WC
Seminole - 82,869 - 107,913 - 60,037 - 76,802 - Diebold Op-Scan - EC
St. Johns - 45,678 - 58,802 - 24,272 - 26,215 - Diebold Op-Scan -**? - NE
St. Lucie- *Dem won - 30,272 - 38,919 - 34,288 - 43,367 - Diebold Op-Scan - EC
Volusia - *Dem won - 74,891 - 100,209 - 85,000 - 106,853 -Diebold Op-Scan- EC