Despite this attitude, however, the appeal failed on national security grounds.

The academy got only part of what it needed and was denied the rest on security grounds.

"None of them objected to the deal proceeding on national security grounds," he said.

And some of it shouldn't see the light of day on national security grounds (at least for a while).

The President could waive the sanctions on national security grounds.

But the officials said the government was refusing access on national security grounds.

But the government is declining to make them available, on national security grounds.

Many of the latter's members had been barred from entering Israel on security grounds.

We have been asked not to disclose full details of the aircraft on security grounds.

All have been classified on national security grounds until today.