Public safety

Formal home addresses can be difficult to find on many Native American reservations. This is problematic, not just when giving directions or receiving packages, but when responding to an emergency.

Napa State Hospital in California added safeguards to protect workers after a psychiatric technician was murdered in 2010. But violence remains a part of daily life at the facility.

Each year, 300 to 400 people are killed in high-speed police pursuits in the U.S. Some solutions to create safer chases have emerged — such as a Batman-like dart that tracks fleeing cars.

Administrators are trying new recruiting tactics and offering bonuses to make up for the shortfall. But for now, open shifts in some states have to be covered with mandatory overtime.