Dallas's 156 tornado sirens hacked and repeatedly set off in the middle of Saturday night
by Cory Doctorow from on (#2JMCD)
If you've ever witnessed an emergency siren test, you know how terrifying these things are: engineered to be bowel-looseningly urgent, to pierce through any sense that it's probably just a misfire, to motivate you to drop everything and rush for the emergency shelters, equally useful for tornadoes and incoming ICBMs. (more")