http://www.startribune.com/politics/national/conventions/27793634.html?page=1&c=y - Minneapolis Star-Tribune
Almost a year to the day before the Republican National Convention began, members of a self-described anarchist group gathered to talk about ways to disrupt it, including kidnapping delegates, sabotaging air vents at the Xcel Energy Center, blocking bridges and "capturing federal buildings" in Minneapolis and St. Paul.
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"An individual by the name of 'Henry' told the action camp group that he was throwing a liquid-filled balloon and that members of the group should stay away from the area ... because it would be very dangerous," the document said. "Henry stated the balloon was filled with a chemical that would be very dangerous and if caught, he would go to jail for a long time."
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Another person talked about using large puppets to conceal and transport Molotov cocktails, bricks, caltrops (devices used to stop buses and other vehicles), shields and lockboxes, the affidavit said. They also planned to throw marbles under the horses of mounted police to trip the horses.
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The affidavit also said that group e-mails from the Welcoming Committee talked about leaving abandoned or overturned vehicles at intersections, pulling a single officer from a police line and beating them, using liquid sprayers filled with urine or chemicals, "unarresting" techniques to free people arrested by police, obtaining fake credentials and dozens of other tactics.
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In addition to buckets of urine, investigators seized homemade devices used to disable buses and other vehicles, weapons, gas masks, flammable liquids and rags that could be used to make Molotov cocktails, computer storage devices, documents, pamphlets and banners.