The Waxman-Markley climate change bill (H.R. 2454) was brought to the floor of the House last week, and passed, with hundreds of pages of last-minute changes. Nobody in the House had the time to read, let alone understand, the final version of the bill before voting on it.
With the OpenCongress legislative versioning tool you can easily view all the changes that were made to bill at the last-minute. Click through to see some of the things that I've found in the version of the bill that was passed by the House.