Catholics join scientists in asking Biden to end threat of nuclear weapons A sign denouncing nuclear weapons is seen near the White House in Washington Oct. 25, 2019. (CNS photo/Tyler Orsburn) By Dennis Sadowski • Catholic News Service • Posted May 12, 2021 (CNS) — Catholic proponents of nuclear disarmament joined scientists in calling on President Joe Biden to pursue an ambitious plan to end the threat nuclear weapons pose to the planet. In a statement to the White House May 12, a group of 14 disarmament advocates — seven Catholics, including three bishops, and seven scientists — urged Biden to seek a new agreement with Russia to continue reducing nuclear weapon stockpiles and work worldwide to achieve their abolition.