Quote

The threat and use of violence is stimulating nuclear proliferation along with jihadi terrorism.

ISIS is the greatest threat.

Iran's continued pursuit of nuclear weapons, support for international terrorist organizations, and abhorrent human rights practices pose one of the greatest threats to global security.

Weapons of mass destruction in the hands of Islamic extremists will be a disaster for the world.

The greatest threat that the world faces is a nuclear Iran. A nuclear North Korea is already troubling enough.

I'm absolutely convinced that the threat we face now, the idea of a terrorist in the middle of one of our cities with a nuclear weapon, is very real and that we have to use extraordinary measures to deal with it.

The nexus between terrorism and nuclear weapons, or even nuclear material, is obviously a current concern.

The nuclear deal with Iran's radical clerics and their military junta is the most dangerous and potentially deadly action that the Obama administration has yet taken.

Given the level of anti-Americanism in the world, given the level of frustration with the United States throughout the Muslim world, you've got a homegrown attack or you have a nuclear explosion in the air that is not a test somewhere. Those are still the biggest threats out there.

The real threat comes from terrorism.