The life-saving simplicity of the triage tag.
"As we enter the era of wearable health trackers that beam our biometrics into the cloud, it seems almost quaint that over the last 50 years the triage tag has largely resisted technological upgrades. But the METTAG is a lesson to anyone who develops human devices: the most timeless designs are often the simplest ones. And in the case of triage tags, that simplicity saves lives."
