

Hasbro's got a new foam dart gun, the $50 Nerf Ultra One blaster, and to make sure that owners of this toy arrange their affairs to the benefit of Hasbro's shareholders, the company has engineered a digital rights management system that detects and refuses to fire third-party darts, which sell by the hundreds for just a few bucks (the official darts are $10 for 20), which means that party organizers running Nerf wars will have to scale back their ambitions or shell out like crazy.