Scientists engineer edible cottonseeds.
This idea, of course, is nothing new. Humans have been pacifying the awesome chemical arsenal of plants for tens of thousands of years. Many of the great foods we eat today - tomatoes, almonds, all sorts of peas and mints originate from highly poisonous wild types.
The real implication is cotton is a plant grown in many third world nations with agrarian economies. This kind of dual purpose where a plant could serve as both a source of protein, clothing and of course, the ability to trade such things for money could have powerful impact in our increasingly small planet. Imagine a plant than can grow in the most desolate of mountain ranges or brutal of deserts and still provide dietary nutrients, substrate for clothing, heck maybe even shelter.
Once again, Science rules.