Video: Sister Megan Rice talk in London
In 2012, Megan Rice was part of a group that entered the Oakridge National Laborotory in the United States, where nuclear weapons are developed and weapons-grade uranium is stored. The group - called 'Transform Now Plowshares' - hammered on the storage building, dawbed the walls of the storage building with blood and slogans, and hung banners. All three were arrested, and spent two years in prison. A detailed written overview of the action can be found here.