But the threat of domestic terrorism using unconventional arms has changed that, adding the potential for anonymity.

The number of attempted terrorist strikes with unconventional arms has been small.

The White House cited unconventional arms as the main reason for the invasion.

Today, the Bush administration's doctrine of pre-emption increases the need for intelligence on nuclear and other unconventional arms.

Ritter argues that Iraq once possessed many unconventional arms but they have either been destroyed or degraded.

But these unconventional arms can still cause mass disruption; a few anthrax incidents, after all, virtually shut down the Congress.

Any potential adversary should know that we will defend ourselves against the possibility of an attack by unconventional arms.

Iran has publicly rejected the goal of developing unconventional arms.

"If we gain control, then theoretically they're ours," the official said of Iraqi unconventional arms.

A main goal is to set up a central base where any unconventional arms could be stored under tight security and then destroyed.