"Gershon Levitsky has a reputation of being an outstanding physicist, dealing with the complex secrets and dynamics of gases while developing optimal consumables at a hi-tech company in Jerusalem - but who would have ever imagined that this soft-spoken man had such a fiery and secretive past?

Over the last week "Gershon"celebrated his own exodus from the former Soviet Union 21 years ago.

Today, Gershon, 63, works at Oridion - a global medical devices company specializing in respiratory patient safety monitoring aimed at saving people's lives. The firm develops medical devices and patient interfaces for the enhancement of patient safety through the monitoring of the carbon dioxide in a patient's breath.