By Michael Specter, News Desk @ newyorker.com, July 11, 2012

Home page lede:

Brazil is starting to use engineered insects to prevent the spread of dengue. Why does Key West still prefer chemical insecticides?

Excerpt:

After a successful pilot project, (which I wrote about in this week’s issue, and discussed on NPR’s “The Takeaway” this morning) Brazil has opened a new factory where scientists will manufacture millions of male Aedes aegypti mosquitoes each month. The project is an attempt to wipe out dengue,

My comment: it's real easy to be against "frankenfood" and tomatoes with fish genes. More difficult to be against genetic modification with a case like this, especially when the intent is saving lives and cutting down on insecticide use.

I highly recommend the full article if you have a subscription, and not just this teaser blog post. Especially if you want to be challenged about concerns  about genetic tinkering.