Peter,

This is a recent article in CONTROL Magazine June 2012 issue:

'

http://www.controlglobal.com/articles/2012/cyber-attack-defense.html

"Protocol Transformation Defense Against Cyber Attack"

This Article Discusses how XMPP Can Offer Packet Inspection at an

Endpoint Prior to Transformation to Another Protocol - 05/24/2012

WILLIAM J. MILLER, PRESIDENT, MaCT, (301) 500-9277

ISA100 CNMIG, Chairman

IEEE P1451.1.4 Chairman

ISO/IEC/IEEE 21451-1-4 Liaison

ISO JTC1 WG7 INCITS SN1 US ANSI Representative