In April, there will be a nuclear security summit in Washington with the goal of securing vulnerable nuclear materials in four years to prevent them falling into the hands of terrorists.

BBC: US and Russia back nuclear disarmament push

It includes securing vulnerable nuclear materials, a goal we advanced at our Nuclear Security Summit, where I thanked Prime Minister Singh for committing India to building a new center of excellence for nuclear energy and security.

WHITEHOUSE: U.S.-India Strategic Dialogue