"I cannot allow our national security needs to be held hostage to this budget battle," he said.

Even so, experts say nuclear security needs to be tightened further.

But strategic security need not come only from arms control.

Some said they thought that the country's security needed access to the best minds at universities.

The security will need to be apportioned accordingly to reflect the period of cover.

As has been mentioned, security needs to be balanced by usability and almost never is.

It is reassuring to know that I am not alone with my own security needs when flying.

But let's just say this- your security needs an upgrade.

Our mutual security need no longer depend on a nuclear balance of terror.

The President said, as he has before, that American nuclear security needs to be improved.