Her professional ties appeared to be a useful asset.
But he added that perhaps his most useful professional asset as a lobbyist was "decades of experience in communications and public affairs."
The Pentagon has many useful assets to contribute in such emergencies.
Once he'd adapted to life back in Britain he proved a useful asset - but 2005 was a different story.
Meanwhile, he would not throw away useful assets while they remained so.
If their a"gents discovered her, we could lose a very useful asset.
It was agreed that a full knowledge of the enemy's nature would be a useful asset, but there were practical difficulties.
He was a skilled negotiator, and his French connections were a useful asset.
They are not considered used and useful assets right now.
An asset more useful, perhaps, than the fellow's willingness to use a gun.