Four arrested for spying in the US
Published:Tuesday | February 12, 2008 | 12:45 PM
Authorities in the US have arrested and charged four persons accused of being spies.
The US claims they are responsible for leaking secret defense information to China.
A former Boeing Engineer is accused of giving China details about the space shuttle and other aerospace programmes.
The US has accused two men and woman of handing over US defense department documents to Taiwan.
A US spokesman said the cases represent serious breaches of national security.