The right to be secure (fwd Computerworld article)

[Peter Shipley]

>   Finally, the system will be designed to ensure that law
>   enforcement destroys the keys it receives when its authority
>   to conduct the electronic surveillance has expired.
> 
>.  It also suggests that keys *can* be kept longer than court
>orders permit if the attorney general wants.
>

if also suggests there no safeguard in the system for keys to expire;
thus an underground can form for keys since there is no expiration date.