Throughout the 22nd century, scientists saw the allure of nanological weapons but felt deep misgivings about the parallels such weapons drew with the 20th century and Mutual Assured Destruction. Only The Eden Project and its compelling argument for violent modification changed people's minds. With a new sense of desperation, underground scientists funded by Ecotopian fronts created the D.R.U.I.D., a single detonation of which returned several hundred square miles of city to pristine wilderness.