For weeks, South Korean officials delayed expected announcements it would join, but experts say they had no other choice after Monday's underground nuclear weapons test by the North.

VOA: standard.2009.05.26

Biological weapons experts said the biological agent is extremely difficult to turn into a weapon of mass destruction.

CNN: U.S. officials still on 'high alert' for additional attacks

About 10% of bomblets in modern cluster weapons usually fail, weapons experts say.

CNN: STORY HIGHLIGHTS

The Czech Parliament also has authorized about 400 Czech weapons experts -- who had been stationed in Kuwait -- to operate in Iraq.

CNN: New purported Saddam tapes aired