Nuclear summit in Washington to begin Monday

President Barack Obama will host a two-day summit beginning Monday on nuclear proliferation and terrorism, according to NPR.

Leaders from nearly 50 countries will be in attendance in what is considered an unprecedented global effort against vulnerable nuclear materials, according to CNN.

Ben Rhodes, the president's deputy national security adviser, said that there is a danger for both American and global security, as there are known terrorist groups pursuing nuclear weapons, according to NPR.

In addition to the summit, the United States will continue negotiating with members of the United Nation Security Council over tougher sanctions against Iran and its nuclear ambitions, according to CNN