This article is lengthy, but if you're concerned about GMO's, love orange juice, or are stuck in an hour-and-a-half's worth of inch-along traffic (as I was), it's definitely worth a read. :)

http://www.nytimes.com/2013/07/28/science/a-race-to-save-the-orange-by-altering-its-dna.html?_r=0