BLACKSBURG, Va., April 30 -- Virginia Polytechnic Institute and State University issued the following news release:

As tires squealed and explosions boomed in the distance, a solitary drone rose above a helipad hidden in the Maryland woods.

A makeshift setup of cameras and microphones aimed in its direction sent information back to a table of laptops, everything running off a single generator, making up a novel system created by a group of Virginia Tech students to rapidly locate and identify potential unmanned aerial threats.

It's part of a project-based learning initiative with the United States Secret Service, which the students are demonstrating at the organization's testing grounds outside of Washington, D.C. As one of five classes ...