At Start, both sides have agreed to reduce the number of strategic nuclear warheads to 6,000.

No evidence exists to confirm the number of warheads produced as 25.

Reducing the number of Soviet warheads would reduce that risk.

Would reduce number of nuclear warheads to 1,050, from 1,968.

Thus, the administration increased the number of nuclear warheads from 1,000 in 1953 to 18,000 by early 1961.

Washington plans to reduce the number of warheads, however.

Reductions in numbers of warheads sounds dramatic, but is it really?

You're saying that you'd like to see the number of warheads brought down.

We'd hit the peak in the number of warheads a decade before, and we were actually on the way down.

North Korea's relatively small number of nuclear warheads is still a threat, some analysts believe.