Gunnar Jauch wrote:
> Also the innocuous term "sleeper" got a whole new connotation.
"Sleeper" has been around since after WWII (Cold War period) to describe
someone who lies-in-wait to create mayhem of some sort. The OED's first
1955 H. Roth Sleeper ix. 66 Hollister.. was a sleeper–a member of the
Communist Party whose whole life was dedicated to the one big moment.
There was a great English tv film about two Russian sleepers who'd made lives in
England that they hated to give up. Very funny and poignant.