Consider this: In Nature all species strive to achieve *optimal balance*. This is also true collectively for the entire habitat these lifeforms live. *Clines* are the gradual change in certain characteristics exhibited by members of a series of adjacent populations of organisms of the same species. That's how the habitat slowly evolves, but it is always seeking optimal balance. When a species is decimated or eliminated it disrupts the optimal balance of the entire habitat. Like dominoes falling the effects are felt moving up the chain effecting other species. The same genetically modified mosquitoes was tried in Brazil several years ago. Initially, it got rid many of the mosquitoes, but new mosquitoes from outside the zone brought in new diseases that were previously 'buffered-out' by the original population of mosquitoes. As a result new diseases were introduced that was otherwise rare and non-existent. These people playing genetic god cannot see outside of their own laboratories. They don't consider that other species like birds transport mosquitoes. The existing population of mosquitoes IS the mosquito control against outside disease carrying mosquitoes. It's idiocy on steroids.