Sealed off for 15 Million Years

Robert Park reported this recently in his news letter:
http://www.bobpark.org/

"LAKE VOSTOK:  A TIME CAPSULE SEALED OFF FOR 15 MILLION YEARS.

The most exciting scientific treasure on Earth is about to be revealed. A 

Russian drilling team is on the verge of reaching the surface of the lake, 

1300 km from the South Pole, according to a story in yesterday's Nature.  

It is the last uncharted environment on Earth. Drilling began 20 years ago, 

and they must reach the liquid water by February 6 or wait until next 

December. They must proceed carefully to avoid contamination of the 

untouched environment."

On the plane to MCM a Raytheon engineer told me that the Russians have backfilled the bore hole with Kerosen. This sounds environmentally scary.