The Defense Advanced Research Project Agency, that secretive band of Pentagon geeks that searches obsessively for the next big thing in the technology of warfare, is 50 years old. So what's hot at DARPA right now? Bugs. The creepy, crawly flying kind. The Agency's Microsystems Technology Office is hard at work on HI-MEMS (Hybrid Insect Micro-Electro-Mechanical System), raising real insects filled with electronic circuitry, which could be guided using GPS technology to specific targets via electrical impulses sent to their muscles. These half-bug, half-chip creations - DARPA calls them insect cyborgs" - would be ideal for surveillance missions, the agency says in a brief description on its website. Such bugs "could carry one or more sensors, such as a microphone or a gas sensor, to relay back information gathered from the target destination." Scientist Amit Lal and his team insert mechanical components into baby bugs during "the caterpillar and the pupae stages," which would then allow the adult bugs to be deployed to do the Pentagon's bidding. "The HI-MEMS program is aimed at developing tightly coupled machine-insect interfaces by placing micro-mechanical systems inside the insects during the early stages of metamorphosis," DARPA says. DARPA declined TIME's request to interview Dr. Lal about his program and the progress he is making in producing the bugs. But in a written statement, spokeswoman Jan Walker said that "living, adult-stage insects have emerged with the embedded systems intact." Presumably, enemy arsenals will soon be well-stocked with Raid.