Activist groups are seeking improvements in the balloons they use to carry political, religious, and humanitarian materials into North Korea. This report assesses the technical state of balloons and drones, along with plausible improvements.
Apr 2, 2018
In previous decades, going back to the Korean War, the South Korean government used to send balloons carrying propaganda into North Korean territory.
Is powering an ultra-high-altitude unmanned aerial vehicle with a laser beam a practical possibility?
Jun 9, 2011