Oklahoma City bombing (1995)
A truck bomb destroyed the Alfred P. Murrah Federal Building in Oklahoma City, killing 168 people. Federal security guidance afterward emphasized standoff distance, vehicle barriers and controlled entrances for public buildings.
Agencies adopted new perimeter security standards for federal facilities.
Public buildings across the country traded some street-level access for blast protection.
The Salt Lake City hospital dispute tests the same trade-off between inviting pedestrians and hardening a building against vehicle or street-level threats.
