For those that may have survived, the population density should be such that successful breeding will be a very low probability.
There may be small isolated pockets of survivors due to extraordinary environmental circumstances, such as in the vicinity of power plants. If any such surviving locals/populations should be found, it is important to eliminate those initial post freeze colonies before they have a chance to spread once again.
jsc
-----
"As hard as I've tried, just can't NOT do this"
John Crickmer

[ Show Entire Thread ]