Not so silent night: Dallas emergency siren system hacked

Hackers struck the sirens Dallas uses to alert residents to take shelter from inclement weather, triggering intermittent false alarms for about an hour and a half until officials deactivated the system early Saturday morning.

Uber fires back at Google spinoff in self-driving car case

Uber is scoffing at claims that its expansion into self-driving cars hinges on trade secrets stolen from a Google spinoff, arguing that its ride-hailing service has been working on potentially superior technology.

Uber smartphone apps provisionally banned in Italy

An Italian court on Friday banned the use of smartphone apps for the ride-hailing group Uber, saying they contribute to traditional taxis facing unfair competition, local media reported.

Laser weapons edge toward use in US military

A sci-fi staple for decades, laser weapons are finally becoming reality in the US military, albeit with capabilities a little less dramatic than at the movies.