PVTs, which are based on observed ballot-counting at a statistically significant number of polling stations, work particularly well with a mechanism for ensuring an honest vote count (or exposing a dishonest one) in circumstances that prevent monitors from observing every polling station.

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They showed how observing someone moving from base station to base station indicated the individual was on the move and how that information could be linked to traffic cameras, such as those in Denver, which are now accessible via the Internet.

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If all goes well, astronauts Donald Pettit and his partners, observing and filming the capsule from inside the station, are supposed to manipulate a roughly 50-foot robotic arm to grab and pull the capsule into a docking port.

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