Game theory suggests that home occupancy and gun ownership discourage home invasions.

FORBES: Am I Safer If My Neighbor Has A Gun?

In theory the UltraViolet concept has always been a solution to the problem for digital ownership of high value content however, when requiring so many different industries to support and agree on all aspects of the specifications of such a program, it can often feel like getting nations to agree on the Kyoto Protocol.

FORBES: UltraViolet: Boom Or Bust For Studios And Consumers?