The Pentagon is studying whether insects can be enlisted to combat crop loss during agricultural emergencies. The bugs would carry genetically engineered viruses that could be deployed rapidly if critical crops such as corn or wheat became vulnerable to a drought, a natural blight or a sudden attack by a biological weapon. The concept envisions the viruses making genetic modifications ... during a single growing season. The program, funded by the Defense Advanced Research Projects Agency (DARPA), has a warm and fuzzy name: Insect Allies. But some critics find the whole thing creepy. A team of skeptical scientists and legal scholars published an article in the journal Science on Thursday arguing that the Insect Allies program opens a Pandoras box" and involves technology that may be widely perceived as an effort to develop biological agents for hostile purposes and their means of delivery. The authors ... contend that Insect Allies could potentially be interpreted as a violation of an international treaty called the Biological Weapons Convention. We argue that there is the risk that the program is seen as not justified by peaceful purposes, [said] co-author Silja Voeneky, a professor of international law. She said the use of insects as a key feature of the program is particularly alarming, because insects could be deployed cheaply and surreptitiously by malevolent actors.