[dbwg] Are POC handles ever deleted from ARIN database?

 I'm curious as to what ARIN does to POC handles that are no longer 
associated with ANY resources. Are these ever deleted from the whois 
database (some kind of major cleanup)? If so when was it last time this 
was done by ARIN?
 If they are not deleted by ARIN, if any handle I'd expect to be in the  
database but it is not, would it mean it was specifically deleted through 
template?

--- 
William Leibzon
Elan Communications Inc. 
william at elan.net