code adam
What does code adam mean?
Public-address alert used by big-box retailers, malls and hospitals when a child is reported missing inside the building. Triggers a lockdown protocol — staff stop what they're doing, monitor exits and sweep the store. If the kid isn't found in 10 minutes, police get called.
Origin
Named after Adam Walsh, the 6-year-old abducted from a Sears in Hollywood, Florida in 1981 and later found murdered. Walmart created the protocol in 1994; it's since been adopted across US federal buildings and most major retail chains.