Goodman: It was there, in the pre-dawn hours of July 28, 2012, that three “Plowshares” peace activists, including an 82-year-old nun, penetrated the facility’s myriad security systems and got to the heart of the complex, the Highly Enriched Uranium Materials Facility, or HEUMF. They spray-painted messages of peace on the wall, poured blood, hammered on the concrete and were arrested.