Designed for Safety, Except Sometimes: Computerized systems may make things faster, but they aren't necessarily safer, as shown by a recent problem with Kaiser's computerized prescriptions:

Kaiser officials said Monday that a power outage affecting its computers on Thursday caused errors in some of the prescriptions dispensed to 4,700 patients. After sharp-eyed pharmacists discovered the embarrassing mistake late Friday, a battalion of pharmacists, nurses and other workers spent the weekend frantically trying to reach every patient via phone, courier-delivered letters and even home visits.

Notice it was the human eye that caught the error. And you would be hard pressed to find a human who could give out 4,700 wrong prescriptions by mistake.