Turns out nuns have more up their habit sleeves than knuckle-rapping rulers and twee songs for Austrian children. Sister Megan Rice, 82, is an anti-nuclear activist who just broke into the Oak Ridge nuclear reservation, site of the country’s main supply of enriched uranium — an operation which experts call “the biggest security breach in the history of the nation’s atomic complex,” according to The New York Times.

This New York City-born nun, who taught school in Africa for years, has already been arrested more than 40 times for civil disobedience. But this latest operation required her to complete tasks worthy of James Bond: Rice and her two partners made their way through the wooded Oak Ridge compound in Tennessee, using bolt cutters to get past fences and dodging armed guards and motion sensors.