William J. Perry: “We think that's one of the most important dangers facing us today.”

The U.S. should maintain a safe, secure, and reliable nuclear deterrent for itself and its allies, and that this deterrent should be adequately funded and staffed with topnotch managers, scientists, and engineers.

But the real solution rests with our President. He needs to stop with excuses and secure our border.

The United States has global interests, and those global interests require presence around the world...

A preemptive strike could bring about complete and total catastrophe to South Korea and to Japan. So that is not an option.