President Obama said nuclear terrorism is the biggest threat to our country in a speech Sunday. He announced a three-day summit he will hold with four other world leaders hosting over 50 leaders from other nations.
Obama has already met with South African President Jacob Zuma.
The focus of this summit is to maintain optimal national security for all countries involved.
"If there was ever a detonation in New York City, or London, or Johannesburg, the ramifications economically, politically and from a security perspective would be devastating," president Obama said.
The summit was started because the administration is finding out that Al-Qaeda and other terrorist groups are mobilizing on their quest for nuclear weapons, which Obama said they "have no compunction of using."
Obama said the other world leaders involved have "very specific" ways to solve this international problem.
The president said securing loose nuclear arms is "a central part of the process" but will focus more attention on the short term.