Ideas to overcome humanity’s greatest challenges:

Crime

• Personal drones could monitor for crimes committed against their owners and report crimes to the police.
• Communal drones could be stored on top of buildings in city areas to swoop down and serve as first responders when crimes are committed.
• People could carry an “Alibi Archive” system similar to 10forhumanity.com

Justice

• What lessons can be learned from the norwegian prison system?