Big Mistake, Al
For you've disagreed with his umptiness, Mr. Eby. Eby has insisted repeatedly that the risk of back contamination is zero, while you've had the temerity to insist instead that it is very low.
Prepare to have your time wasted with jump and shout proofs, and going through the same material again and again and again...
EP
still waiting for the refunds on all those watery Mars studies...
