small object is caught in them, so they fail to count some votes. When not maintained well the counters can stick and stop counting additional votes; staff may or may not choose to fix the problem. Also, election staff can read the final results wrong off the back of the machine. Electronic counting Electronic machines for elections are being procured around the world, often with donor money. In places with honest independent election commissions, machines can add efficiency, though not usually transparency. Where the election commission is weaker, expensive machines can be fetishized, waste money on kickbacks and divert attention, time and resources from harmful practices, as well as reducing transparency. An Estonian study compared the staff, computer, and other costs of different ways of voting to the numbers of voters, and found highest costs per vote were in lightly-used, heavily staffed early in-person voting. Lowest costs per vote were in internet voting and in-person voting on election day at local polling places, because of the large numbers of voters served by modest staffs. For internet voting they do not break down the costs. They show steps to decrypt internet votes and imply but do not say they are hand-counted. Optical scan counting In an optical scan voting system, or marksense, each voter's choices are marked on one or more pieces of paper, which then go through a scanner. The scanner creates an electronic image of each ballot, interprets it, creates a tally for each candidate, and usually stores the image for later review. The voter may mark the paper directly, usually in a specific location for each candidate, either by filling in an oval or by using a patterned stamp that can be easily detected by OCR software. Of the voter may pick one pre-marked ballot among many, each with its own barcode or QR code corresponding to a candidate. Or the voter may select choices on an electronic screen, which then prints the chosen names, usually with a bar code or QR code summarizing all choices, on a sheet of paper to put in the scanner. This screen and printer is called an electronic ballot marker (EBM) or ballot marking device (BMD), and voters with disabilities can communicate with it by headphones, large buttons, sip and puff, or paddles, if they cannot interact with the screen or paper directly. Typically the ballot marking device does not store or