> It would be very surprising. How many spies and 'double agents' are there? Talk to anyone who deals in sensitive matters and attends conferences and they wil

> It would be very surprising. How many spies and 'double agents' are there? Talk to anyone who deals in sensitive matters and attends conferences and they will tell you the number of people trying to pry information is overwhelming. So the answer to your question is lots. A tremendous number of people, especially in academia, feed information to foreign governments. Not only is it not rare, but it's obnoxiously common for those who have to deal with it.