Always worry about some devastating hidden disease. Remember....they were wiped out....
...we all know that just recently, a bunch of scientists developed a strain of chicken flu which has the potential to wipe out 25% of the human population on the earth....
...they were even urged not to publish their findings in technical publications...
...how long will it take before some lunatic group is threatening to turn it loose on the world???
...as "they" say....two people can keep a secret......if one of them is dead.