In this week's address, the President spoke from the Nuclear Security Summit on one of the greatest threats to global security—terrorists getting their hands on a weapon of mass destruction, such as a nuclear weapon. He discussed the global effort we have been leading to secure the world’s nuclear materials and highlighted the fact that working with other nations, we have removed or secured enough nuclear material for more than 150 nuclear weapons—material that will now never fall into the hands of terrorists. The President also reiterated his commitment to making sure the world remains united and focused on destroying ISIL. He emphasized that defeating ISIL remains our top priority, and during the summit, he focused on ways to step up our efforts to disrupt terrorist attacks. Because of the progress of this week’s summit, and over recent years, more of the world’s nuclear material is secure, and the President will continue to do everything in his power to keep our nation safe and strong and free.