That's true but I was thinking that is it's good to mention they are invasive so people don't get the wrong idea about them being a cute addition to their pond wherever they are. Also it's a bad policy to release anything from a private pond into a natural body of water due to possible disease and lack of resistance the native species may have to it.
I'm totally in agreement with
@CometKeith its very bad policy to release anything from a private pond into a natural body of water.
Not only that you may fall foul of any laws put in place to prevent this and end up with either a fine or a suspended sentance .
Here in the UK we are blighted with releases of creatures into the wild each foriegn species has had a devastating effect on our enviroment first it was the grey sqiural then the RES , snapping turtles , mitten crabs from China wrecking our river banks, then we got American Cray fish, Termites, the list is endless Of foreign species making it to our tiny Island from different parts of the globe either by ship or through the pet trade or crazes through films etc
Dave