If the mission sounds impossible, that's because it is—at least with today's technology: Build a three-pound flying machine that can, under its own control, take off, fly through a window into a model building, avoid security lasers, navigate the halls, recognize signs, enter the correct room, find a flash drive in a box on a desk, pick it up, leave a decoy, exit and land in under 10 minutes. It's the charge of the International Aerial Robotics Competition—a contest that's in its 18th year, but only its sixth mission. It tends to take a few years for a team to build a craft that can accomplish it. In 2012, U-M's group came closest of the 21 participating teams. And this year the students say they're poised to succeed."We've had a year to work on retrieval. We've had a year to work on dropping a decoy. We've had a year to further tighten everything and adjust the tolerances," said Jonathan Bendes, leader of the Michigan Autonomous Aerial Vehicle team and a senior computer science major."The pieces that weren't in place before are now," said Jonathan Kurzer, a senior in electrical engineering who leads the circuits division. "And we know we can move on to the next task, which is winning."